174 results on '"van der Oord S"'
Search Results
52. A Pilot Study of the Efficacy of a Computerized Executive Functioning Remediation Training With Game Elements for Children With ADHD in an Outpatient Setting
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van der Oord, S., primary, Ponsioen, A. J.G. B., additional, Geurts, H. M., additional, Brink, E. L. Ten, additional, and Prins, P. J. M., additional
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- 2012
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53. Prepotent response inhibition predicts treatment outcome in attention deficit/hyperactivity disorder
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van der Oord, S., primary, Geurts, H. M., additional, Prins, P. J. M., additional, Emmelkamp, P. M. G., additional, and Oosterlaan, J., additional
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- 2012
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54. A Pilot Study of the Efficacy of a Computerized Executive Functioning Remediation Training With Game Elements for Children With ADHD in an Outpatient Setting: Outcome on Parent- and Teacher-Rated Executive Functioning and ADHD Behavior.
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van der Oord, S., Ponsioen, A. J.G. B., Geurts, H. M., Brink, E. L. Ten, and Prins, P. J. M.
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- 2014
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55. Can motivation normalize working memory and task persistence in children with attention-deficit/hyperactivity disorder? The effects of money and computer-gaming.
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Dovis S, Van der Oord S, Wiers RW, Prins PJ, Dovis, Sebastiaan, Van der Oord, Saskia, Wiers, Reinout W, and Prins, Pier J M
- Abstract
Visual-spatial Working Memory (WM) is the most impaired executive function in children with Attention-Deficit/Hyperactivity Disorder (ADHD). Some suggest that deficits in executive functioning are caused by motivational deficits. However, there are no studies that investigate the effects of motivation on the visual-spatial WM of children with- and without ADHD. Studies examining this in executive functions other than WM, show inconsistent results. These inconsistencies may be related to differences in the reinforcement used. The effects of different reinforcers on WM performance were investigated in 30 children with ADHD and 31 non-ADHD controls. A visual-spatial WM task was administered in four reinforcement conditions: Feedback-only, 1 euro, 10 euros, and a computer-game version of the task. In the Feedback-only condition, children with ADHD performed worse on the WM measure than controls. Although incentives significantly improved the WM performance of children with ADHD, even the strongest incentives (10 euros and Gaming) were unable to normalize their performance. Feedback-only provided sufficient reinforcement for controls to reach optimal performance, while children with ADHD required extra reinforcement. Only children with ADHD showed a decrease in performance over time. Importantly, the strongest incentives (10 euros and Gaming) normalized persistence of performance in these children, whereas 1 euro had no such effect. Both executive and motivational deficits give rise to visual-spatial WM deficits in ADHD. Problems with task-persistence in ADHD result from motivational deficits. In ADHD-reinforcement studies and clinical practice (e.g., assessment), reinforcement intensity can be a confounding factor and should be taken into account. Gaming can be a cost-effective way to maximize performance in ADHD. [ABSTRACT FROM AUTHOR]
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- 2012
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56. Treatment of post-traumatic stress disorder in children using cognitive behavioural writing therapy.
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Van der Oord S, Lucassen S, Van Emmerik AAP, and Emmelkamp PMG
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Objectives: This study evaluated the effectiveness of Cognitive Behavioral Writing Therapy (CBWT) in 23 children (age 8-18 years) in the Netherlands, who experienced a range of single and recurrent traumatic experiences. CBWT uses exposure, cognitive restructuring and social sharing. Methods: At pre-test, post-test and follow-up, post-traumatic stress disorder (PTSD) symptoms, depressive symptoms, trauma-related cognitions and general behavioural problems were assessed. Results: At post-test there was a significant reduction of all symptoms, and this effect was maintained at 6 months follow-up. The mean amount of treatment sessions needed was 5.5. Conclusions: This study shows that short-term CBWT is a potentially effective intervention for clinically referred traumatized children. There is now a clear need of establishing the effectiveness of CBWT in a randomized, controlled trial. Practice implication: This first study indicates CBWT is a promising treatment, which can easily be used in clinical practice. [ABSTRACT FROM AUTHOR]
- Published
- 2010
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57. Treatment of attention deficit hyperactivity disorder in children: predictors of treatment outcome.
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van der Oord S, Prins PJM, Oosterlaan J, and Emmelkamp PMG
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OBJECTIVE: The present study investigated the predictive power of anxiety, IQ, severity of ADHD and parental depression on the outcome of treatment in children with ADHD. METHOD: Fifty children with ADHD (ages 8-12) were randomized to a 10-week treatment of methylphenidate or to a treatment of methylphenidate combined with multimodal behavior therapy. Prior to treatment predictors were assessed. Outcome was assessed separately for parents and teachers on a composite measure of inattentive, hyperactive, oppositional- and conduct disorder symptoms. RESULTS: There was neither a significant difference between the two treatments at baseline nor did treatment condition predict outcome. Therefore the data were collapsed across the two treatments. A combination of anxiety and IQ predicted teacher-rated outcome, explaining 18% of the variance. Higher anxiety and higher IQ's indicated better treatment outcome. There were no significant predictors of the parent-rated outcome. CONCLUSION: This study showed a small but significant predictive effect of IQ and anxiety on treatment outcome in children with ADHD. CLINICAL IMPLICATIONS: This study supports the idea that for the treatment of ADHD children with comorbid anxiety and higher IQ respond better to the two most used treatments for ADHD. [ABSTRACT FROM AUTHOR]
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- 2008
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58. Prepotent response inhibition predicts treatment outcome in attention deficit hyperactivity disorder.
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van der Oord, S., Geurts, H. M., Prins, P. J. M., Emmelkamp, P. M. G., and Oosterlaan, J.
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Introduction: Inhibition deficits, including deficits in prepotent response inhibition and interference control, are core deficits in ADHD. The predictive value of prepotent response inhibition and interference control was assessed for outcome in a 10-week treatment trial with methylphenidate [1]. Methods: Fifty children with ADHD (ages 8–12) received 10 weeks of methylphenidate treatment. At pre-test prepotent response inhibition was assessed using the Stop-signal Task, interference control was assessed using the Stroop Color-Word task. Methylphenidate was individually titrated to an optimal dose. Treatment outcome was assessed by parent- and teacher-rated ADHD behavior. Results: Only stop-signal reaction time of the stop-signal task was a significant predictor of parent-rated levels of inattention and hyperactivity/ impulsivity at outcome. Children with lower levels of inhibition showed worse outcome after 10 weeks of treatment, independent of medication dose. Conclusion: Low levels of prepotent response inhibition are associated with worse response to treatment with methylphenidate. Discussion: Prepotent response inhibition may be a specific intermediate phenotypical predictor of treatment outcome. [ABSTRACT FROM AUTHOR]
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- 2010
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59. What motivates children and adolescents with ADHD? : Wat motiveert kinderen en jongeren met ADHD?
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Morsink, S, Van der Oord, S, Lemiere, J, and Danckaerts, M
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status: published
- Published
- 2018
60. Behavioral and Emotional Responding to Punishment in ADHD: Is Increased Emotionality Related to Altered Behavioral Responding?
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Hulsbosch AK, Alsop B, Danckaerts M, Van Liefferinge D, Tripp G, and Van der Oord S
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Children with ADHD are theorized to experience increased negative emotional responses to punishment, compared to typically developing (TD) children, resulting in altered behavioral responding (Amsel, 1992). However, this has not been empirically tested. The current study evaluated the effects of punishment and reward on the behavioral and emotional responding of children with and without ADHD. Fifty-three children with ADHD (64.15% boys) and 46 TD children (47.83% boys), age 6-12, completed a task in which they chose between playing two simultaneously available games. Reward was arranged symmetrically across the games; responses on one game were punished four times as often as responses on the other game. Children's negative and positive emotional expressions were assessed during task completion with facial expression coding. Results indicated both groups showed a preference for playing the less punished game. Children with ADHD took longer to respond after punishment and reward compared to TD children. Negative emotional expressions increased with time on task for those with ADHD, the opposite pattern was seen in TD children. Children with ADHD showed more positive emotional expressions overall. The effect of ADHD on increased response times after reward was statistically fully mediated by increased positive facial expressions. Findings indicate children with ADHD do not show an altered response bias under punishment compared to TD children, but their cumulative negative emotional responding may indicate problems with building frustration tolerance as hypothesized by Amsel (1992). Results are theoretically important as they suggest increased emotional responding in ADHD is associated with slower responding., (© 2024. The Author(s).)
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- 2024
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61. The short- and longer-term effects of brief behavioral parent training versus care as usual in children with behavioral difficulties: study protocol for a randomized controlled trial.
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van Doornik RS, van der Oord S, Luijckx J, Groenman AP, Leijten P, Luman M, Hoekstra PJ, van den Hoofdakker BJ, and Dekkers TJ
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- Child, Humans, Child Behavior, Multicenter Studies as Topic, Parent-Child Relations, Parenting, Randomized Controlled Trials as Topic, Child, Preschool, Mental Disorders, Parents education
- Abstract
Background: The access to and uptake of evidence-based behavioral parent training for children with behavioral difficulties (i.e., oppositional, defiant, aggressive, hyperactive, impulsive, and inattentive behavior) are currently limited because of a scarcity of certified therapists and long waiting lists. These problems are in part due to the long and sometimes perceived as rigid nature of most evidence-based programs and result in few families starting behavioral parent training and high dropout rates. Brief and individually tailored parenting interventions may reduce these problems and make behavioral parent training more accessible. This protocol paper describes a two-arm, multi-center, randomized controlled trial on the short- and longer-term effectiveness and cost-effectiveness of a brief, individually tailored behavioral parent training program for children with behavioral difficulties., Methods: Parents of children aged 2-12 years referred to a child mental healthcare center are randomized to (i) three sessions of behavioral parent training with optional booster sessions or (ii) care as usual. To evaluate effectiveness, our primary outcome is the mean severity of five daily ratings by parents of four selected behavioral difficulties. Secondary outcomes include measures of parent and child behavior, well-being, and parent-child interaction. We explore whether child and parent characteristics moderate intervention effects. To evaluate cost-effectiveness, the use and costs of mental healthcare and utilities are measured. Finally, parents' and therapists' satisfaction with the brief program are explored. Measurements take place at baseline (T0), one week after the brief parent training, or eight weeks after baseline (in case of care as usual) (T1), and six months (T2) and twelve months (T3) after T1., Discussion: The results of this trial could have meaningful societal implications for children with behavioral difficulties and their parents. If we find the brief behavioral parent training to be more (cost-)effective than care as usual, it could be used in clinical practice to make parent training more accessible., Trial Registration: The trial is prospectively registered at ClinicalTrials.gov (NCT05591820) on October 24th, 2022 and updated throughout the trial., (© 2024. The Author(s).)
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- 2024
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62. Navigating adolescence: pubertal development in autism spectrum conditions and its relation to mental health.
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Groenman AP, van der Oord S, and Geurts HM
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Adolescence is a period of social, psychological, and physiological change, including the onset of puberty. Differential pubertal onset has been linked to a myriad of problems, including mental health problems. Therefore, we aim to investigate deviating pubertal development in autism, and whether this is more pronounced in girls than in boys. A total of 68 individuals (n
ASC = 34, nCOM (comparisons) = 34) aged 12 to 16 years were administered test concerning pubertal development and mental health (i.e., sensory sensitivity, autistic traits, depression, anxiety, and externalizing problems). Frequentist and Bayesian ANOVA was used to examine deviations in pubertal development in ASC and possible sex effects. Regression analyses was used to test whether this asynchronicity was linked to mental health problems. Our (frequentist and Bayesian) analyses revealed earlier onset and slower development of pubertal development in ASC but we did not find any sex differences. Maturation disparity was linked to higher mental health problems in ASC, but not in COM. No sex differences in the relation with mental health outcomes was found. We found evidence for a slower development of "true" puberty in those with ASC compared to those without. Moreover, we show that disparities in pubertal development are related to mental health in ASC, suggesting a greater impact on mental health in autistic than in non-autistic teens. Longitudinal studies are necessary to elucidate important developmental trajectories in puberty in neurodiverse populations., (© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature.)- Published
- 2024
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63. Sleep and Sleep Hygiene of Adolescents With and Without ADHD During COVID-19.
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Marten F, Keuppens L, Baeyens D, Boyer BE, Danckaerts M, and Van der Oord S
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- Humans, Adolescent, Sleep Hygiene, Sleep, Attention Deficit Disorder with Hyperactivity complications, Attention Deficit Disorder with Hyperactivity epidemiology, Attention Deficit Disorder with Hyperactivity diagnosis, Sleep Wake Disorders epidemiology, Sleep Wake Disorders etiology, COVID-19 complications
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Objective: This study examined the effect of COVID-19 restrictions on the sleep and sleep hygiene of adolescents with ADHD and comorbid sleep problems and neurotypical adolescents (NT)., Method: Four groups (two ADHD and two NT) of in total 100 adolescents (50 ADHD and 50 NT) were included. One ADHD and NT group were tested during many COVID-19 restrictions, the other during few. MANCOVAs were implemented with ADHD diagnosis and level of COVID-19 restrictions as independent and sleep outcomes (subjective and objective total sleep time (TST) and sleep onset latency (SOL), sleep and sleep hygiene problems) as dependent variables., Results: Both groups had a shorter objective TST during the week during many COVID-19 restrictions. Furthermore, adolescents with ADHD had a shorter subjective SOL during the weekend when there were many COVID-19 restrictions, while the SOL of the NT group stayed the same., Conclusion: COVID-19 restrictions are related to the sleep of adolescents with and without ADHD. However, causality and underlying mechanisms need further investigation., Competing Interests: Declaration of Conflicting InterestsThe author(s) declared the following potential conflicts of interest with respect to the research, authorship, and/or publication of this article: MD is participating in a Takeda-sponsored clinical trial in ADHD. SVDO declares a honorarium and reimbursement for travel expenses from MEDICE for a lecture on non-pharmacological treatment of ADHD. All other authors have no conflict of interest.
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- 2023
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64. Instrumental learning and behavioral persistence in children with attention-deficit/hyperactivity-disorder: does reinforcement frequency matter?
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Hulsbosch AK, Beckers T, De Meyer H, Danckaerts M, Van Liefferinge D, Tripp G, and Van der Oord S
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- Child, Humans, Reinforcement, Psychology, Conditioning, Operant physiology, Learning, Attention physiology, Attention Deficit Disorder with Hyperactivity
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Background: Prominent theoretical accounts of attention-deficit/hyperactivity-disorder (ADHD) hypothesize that reinforcement learning deficits underlie symptoms of ADHD. The Dynamic Developmental Theory and the Dopamine Transfer Deficit hypothesis assume impairments in both the acquisition and extinction of behavior, especially when learning occurs under partial (non-continuous) reinforcement, and subsequently the Partial Reinforcement Extinction Effect (PREE). Few studies have evaluated instrumental learning in ADHD and the results are inconsistent. The current study investigates instrumental learning under partial and continuous reinforcement schedules and subsequent behavioral persistence when reinforcement is withheld (extinction) in children with and without ADHD., Methods: Large well-defined samples of children with ADHD (n = 93) and typically developing (TD) children (n = 73) completed a simple instrumental learning task. The children completed acquisition under continuous (100%) or partial (20%) reinforcement, followed by a 4-min extinction phase. Two-way (diagnosis by condition) ANOVAs evaluated responses needed to reach the learning criterion during acquisition, and target and total responses during extinction., Results: Children with ADHD required more trials to reach criterion compared to TD children under both continuous and partial reinforcement. After partial reinforcement, children with ADHD executed fewer target responses during extinction than TD children. Children with ADHD executed more responses than TD children during extinction, irrespective of learning condition., Conclusions: The findings demonstrate general difficulties in instrumental learning in ADHD, that is, slower learning irrespective of reinforcement schedule. They also show faster extinction following learning under partial reinforcement in those with ADHD, that is, a diminished PREE. Children with ADHD executed more responses during extinction. Results are theoretically important, with clinical implications for understanding and managing learning difficulties in those with ADHD, as they suggest poorer reinforcement learning and lower behavioral persistence., (© 2023 The Authors. Journal of Child Psychology and Psychiatry published by John Wiley & Sons Ltd on behalf of Association for Child and Adolescent Mental Health.)
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- 2023
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65. Sustained improvements by behavioural parent training for children with attention-deficit/hyperactivity disorder: A meta-analytic review of longer-term child and parental outcomes.
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Doffer DPA, Dekkers TJ, Hornstra R, van der Oord S, Luman M, Leijten P, Hoekstra PJ, van den Hoofdakker BJ, and Groenman AP
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Background: Behavioural parent training is an evidence-based intervention for children with attention-deficit/hyperactivity disorder (ADHD), but little is known about the extent to which initial benefits are maintained., Aims: This meta-analytic review investigated longer-term (i.e., more than 2 months post-intervention) child and parental outcomes of behavioural parent training for children with ADHD., Materials & Methods: We searched for randomized controlled trials and examined ADHD symptoms, behavioural problems, positive parenting, negative parenting, parenting sense of competence, parent-child relationship quality, and parental mental health as outcomes. We included 27 studies (31 interventions; 217 effect sizes), used multilevel random-effects meta-analyses for between- and within-group comparisons (pre-intervention to follow-up and post-intervention to follow-up), and explored twelve predictors of change., Results: Between pre-intervention and follow-up ( M = 5.3 months), we found significant small-to-moderate between-group effects of the intervention on ADHD symptoms, behavioural problems, positive parenting, parenting sense of competence and parent-child relationship quality. Within-group findings show sustained improvements in the intervention conditions for all outcome domains. There were few significant changes from post-intervention to follow-up. Additionally, the large majority of the individual effect sizes indicated sustained outcomes from post-intervention to follow-up. There were seven significant predictors of change in child outcomes, including stronger reductions in ADHD symptoms of girls and behaviour problems of younger children. In contrast with some meta-analyses on short-term effects, we found no differences between masked and unmasked outcomes on ADHD symptoms at follow-up., Discussion & Conclusion: We conclude that behavioural parent training has longer-term benefits for children's ADHD symptoms and behavioural problems, and for positive parenting behaviours, parenting sense of competence and quality of the parent-child relationship., Competing Interests: Prof. Dr. van der Oord has co‐developed a planning‐focused and solution‐focused treatment and other behavioural treatments, but has no financial interest in any of these. She has received research grants from ZonMw and the Research Foundation Flanders (FWO). She was an advisor of the Dutch ADHD guideline groups and is a member of a working group on ADHD of the Superior Health Council of Belgium. Dr. Luman has co‐developed a self‐help teacher training program, without financial interests. She has received research grants from ZonMw and was an advisor of the Dutch ADHD guideline groups. Prof. Dr. van den Hoofdakker has received royalties as one of the editors of “Sociaal Onhandig” (published by Van Gorcum), a Dutch book for parents that can be used in parent training. She has been involved in the development and evaluation of several parent and teacher training programs, without financial interests. She has been a member of Dutch ADHD guideline and practice standard groups. Dr. Dekkers, Dr. Hornstra, Dr. Leijten, Prof. Dr. Hoekstra, Dr. Groenman and Ms. Doffer have reported no biomedical financial interests or potential conflicts of interest., (© 2023 The Authors. JCPP Advances published by John Wiley & Sons Ltd on behalf of Association for Child and Adolescent Mental Health.)
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- 2023
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66. Components of Behavioral Parent Training for Children With Attention-Deficit/Hyperactivity Disorder: A Series of Replicated Single-Case Experiments.
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Hornstra R, Onghena P, van den Hoofdakker BJ, van der Veen-Mulders L, Luman M, Staff AI, and van der Oord S
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- Child, Humans, Behavior Therapy methods, Parents education, Research Design, Attention Deficit Disorder with Hyperactivity therapy, Problem Behavior
- Abstract
Behavioral parent training (BPT) is an evidence-based treatment for children with attention-deficit/hyperactivity disorder (ADHD). Stimulus control techniques (antecedent-based techniques, e.g., clear rules, instructions) and contingency management techniques (consequent-based techniques, e.g., praise, ignore) are the most common ones that are being taught to parents in BPT. However, research into the additive effects of these techniques is scarce. In this replicated single-case experimental ABC phase design, including six children on stable medication for ADHD (8-11 years) and their parents, the added efficacy of consequent-based techniques on top of antecedent-based techniques was evaluated. After a baseline period (phase A), we randomized the commencement time of two sessions parent training in antecedent-based techniques and two sessions parent training in consequent-based techniques for each child. Children's behaviors were assessed by daily parent ratings of selected problem behaviors and an overall behavior rating. Although visual inspection showed that behavior improved for most children in both phases, randomization tests did not demonstrate the added efficacy of the consequent-based techniques on top of the antecedent-based techniques. Limitations of the study and recommendations for future single-case experiments in this population are discussed.
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- 2023
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67. Editorial Perspective: When to start de-implementation of interventions: the case of cognitive training for children with ADHD.
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Dekkers TJ and van der Oord S
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- Humans, Child, Cognitive Training, Attention Deficit Disorder with Hyperactivity therapy, Attention Deficit Disorder with Hyperactivity psychology, Cognitive Behavioral Therapy
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- 2023
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68. The management of ADHD in children and adolescents: bringing evidence to the clinic: perspective from the European ADHD Guidelines Group (EAGG).
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Coghill D, Banaschewski T, Cortese S, Asherson P, Brandeis D, Buitelaar J, Daley D, Danckaerts M, Dittmann RW, Doepfner M, Ferrin M, Hollis C, Holtmann M, Paramala S, Sonuga-Barke E, Soutullo C, Steinhausen HC, Van der Oord S, Wong ICK, Zuddas A, and Simonoff E
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- Child, Humans, Adolescent, Mental Health, Ambulatory Care Facilities, Attention Deficit Disorder with Hyperactivity therapy, Attention Deficit Disorder with Hyperactivity drug therapy
- Abstract
ADHD is the most common neurodevelopmental disorder presenting to child and adolescent mental health, paediatric, and primary care services. Timely and effective interventions to address core ADHD symptoms and co-occurring problems are a high priority for healthcare and society more widely. While much research has reported on the benefits and adverse effects of different interventions for ADHD, these individual research reports and the reviews, meta-analyses and guidelines summarizing their findings are sometimes inconsistent and difficult to interpret. We have summarized the current evidence and identified several methodological issues and gaps in the current evidence that we believe are important for clinicians to consider when evaluating the evidence and making treatment decisions. These include understanding potential impact of bias such as inadequate blinding and selection bias on study outcomes; the relative lack of high-quality data comparing different treatments and assessing long-term effectiveness, adverse effects and safety for both pharmacological and non-pharmacological treatments; and the problems associated with observational studies, including those based on large national registries and comparing treatments with each other. We highlight key similarities across current international clinical guidelines and discuss the reasons for divergence where these occur. We discuss the integration of these different perspective into a framework for person/family-centered evidence-based practice approach to care that aims to achieve optimal outcomes that prioritize individual strengths and impairments, as well as the personal treatment targets of children and their families. Finally, we consider how access to care for this common and impairing disorder can be improved in different healthcare systems., (© 2021. Crown.)
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- 2023
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69. The Relation Between Classroom Setting and ADHD Behavior in Children With ADHD Compared to Typically Developing Peers.
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Staff AI, Oosterlaan J, van der Oord S, van den Hoofdakker BJ, and Luman M
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- Humans, Child, Schools, Peer Group, Attention Deficit Disorder with Hyperactivity
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Objective: More knowledge on the impact of classroom setting on behavior of children with ADHD may help us to better adjust classroom settings to the needs of this group., Method: We observed ADHD behaviors of 55 children with ADHD and 34 typically developing peers (6-12 years) during classroom transitions, group lessons, and individual seatwork., Results: Multivariate analyses revealed that levels of motor and verbal hyperactivity increased during classroom transitions compared to group lessons and individual seatwork. Children in the ADHD group were more off-task, across settings. There were no interactions between group and setting., Conclusions: Children with ADHD were similarly affected by classroom setting compared to typically developing peers, despite being more off-task across settings. Further research into whether the observed increase in hyperactivity during classroom transitions may be problematic or possibly even beneficial for children with ADHD is recommended.
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- 2023
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70. Interventions for ADHD in childhood and adolescence: A systematic umbrella review and meta-meta-analysis.
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Türk S, Korfmacher AK, Gerger H, van der Oord S, and Christiansen H
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- Adolescent, Child, Humans, Parents, Attention Deficit Disorder with Hyperactivity therapy, Attention Deficit Disorder with Hyperactivity psychology
- Abstract
There are several meta-analyses of treatment effects for children and adolescents with attention deficit hyperactivity disorder (ADHD). The conclusions of these meta-analyses vary considerably. Our aim was to synthesize the latest evidence of the effectiveness of psychological, pharmacological treatment options and their combination in a systematic overview and meta-meta-analyses. A systematic literature search until July 2022 to identify meta-analyses investigating effects of treatments for children and adolescents with ADHD and ADHD symptom severity as primary outcome (parent and teacher rated) yielded 16 meta-analyses for quantitative analyses. Meta-meta-analyses of pre-post data showed significant effects for pharmacological treatment options for parent (SMD = 0.67, 95% CI 0.60 to 0.74) and teacher ADHD symptom ratings (SMD = 0.68, 95% CI 0.54 to 0.82) as well as for psychological interventions for parent (SMD = 0.42, 95% CI 0.33 to 0.51) and teacher rated symptoms (SMD = 0.25, 95% CI 0.12 to 0.38). We were unable to calculate effect sizes for combined treatments due to the lack of meta-analyses. Our analyses revealed that there is a lack of research on combined treatments and for therapy options for adolescents. Finally, future research efforts should adhere to scientific standards as this allows comparison of effects across meta-analyses., Competing Interests: Declaration of Competing Interest The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2023. Published by Elsevier Ltd.)
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- 2023
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71. Review: Which components of behavioral parent and teacher training work for children with ADHD? - a metaregression analysis on child behavioral outcomes.
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Hornstra R, Groenman AP, van der Oord S, Luman M, Dekkers TJ, van der Veen-Mulders L, Hoekstra PJ, and van den Hoofdakker BJ
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- Humans, Child, Adolescent, Parents education, Behavior Therapy methods, Attention Deficit Disorder with Hyperactivity therapy, Attention Deficit Disorder with Hyperactivity diagnosis, Teacher Training, Problem Behavior
- Abstract
Background: This metaregression analysis examined which behavioral techniques that are commonly used in behavioral parent and teacher training programs for children with attention-deficit/hyperactivity disorder (ADHD) were related to program effectiveness on children's behavioral outcomes., Methods: We included 32 randomized controlled trials (N = 2594 children) investigating behavioral parent training, teacher training, or a combination, in children with ADHD under 18 years. Outcomes were symptom counts of total ADHD, inattention, and hyperactivity-impulsivity and behavioral problems. The dosage of techniques was extracted from the intervention manuals. Metaregression was used to assess which techniques and intervention characteristics (setting, delivery method, duration, and home-school collaboration) were associated with intervention effectiveness., Results: Higher dosage of psycho-education for parents was associated with smaller effects on behavioral problems and, only in case of parent training, also with smaller effects on ADHD symptoms. Higher dosage of teaching parents/teachers to use negative consequences was associated with larger effects on behavioral problems. Individual training compared with group training was associated with larger effects on ADHD and hyperactivity-impulsivity symptoms., Conclusions: This study provides first insights into the specific techniques that are essential in behavioral parent and teacher training programs for children with ADHD. This knowledge can eventually be used to improve and tailor interventions., (© 2022 The Authors. Child and Adolescent Mental Health published by John Wiley & Sons Ltd on behalf of Association for Child and Adolescent Mental Health.)
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- 2023
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72. Sleep IntervEntion as Symptom Treatment for ADHD (SIESTA)-Blended CBT sleep intervention to improve sleep, ADHD symptoms and related problems in adolescents with ADHD: Protocol for a randomised controlled trial.
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Keuppens L, Marten F, Baeyens D, Boyer B, Danckaerts M, and van der Oord S
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- Humans, Adolescent, Sleep, Parents psychology, Randomized Controlled Trials as Topic, Attention Deficit Disorder with Hyperactivity complications, Attention Deficit Disorder with Hyperactivity therapy, Attention Deficit Disorder with Hyperactivity diagnosis, Cognitive Behavioral Therapy methods, Sleep Wake Disorders therapy, Sleep Wake Disorders complications
- Abstract
Introduction: Adolescents with attention deficit hyperactivity disorder (ADHD) experience a more disrupted sleep and more sleep problems compared with typically developing adolescents. This is particularly concerning, because disrupted sleep is related to worsened clinical, neurocognitive and functional outcomes and leads to increased ADHD symptom impairment. Due to the specific difficulties adolescents with ADHD experience, a tailored sleep treatment is needed. Therefore, our lab developed a cognitive behavioural treatment-Sleep IntervEntion as Sympom Treatment for ADHD (SIESTA)-that integrates sleep training with motivational interviewing, and planning/organisational skills training with the aim of improving sleep problems in adolescents with ADHD., Methods and Analysis: A randomised, controlled, investigator-blinded monocentre trial is used to test whether SIESTA in combination with treatment as usual (TAU) for ADHD results in greater improvement in sleep problems than TAU only. Adolescents (aged 13-17 years) with ADHD and sleep problems are included. They complete measurements before treatment (pre-test), approximately 7 weeks after the pre-test (post-test), and approximately 3 months after the post-test (follow-up). The assessment includes questionnaires filled out by adolescents, parents and teachers. Additionally, sleep is assessed by actigraphy and sleep diaries at all time-points. Primary outcomes include objectively and subjectively measured sleep architecture (specified as total sleep time, sleep onset latency, sleep efficiency and number of awakenings), subjectively measured sleep problems and sleep hygiene. Secondary outcomes include ADHD symptoms, comorbidities and functional outcomes. To analyse the data, a linear mixed effects model will be used with an intent-to-treat approach., Ethics and Dissemination: The study activities, informed consent and assent forms have been approved by the Ethical Committee Research UZ/KU Leuven (study ID S64197). If proven effective, the intervention will be implemented throughout Flanders. Therefore, an advisory board consisting of societal partners in healthcare is appointed at the start of the project, giving advice throughout the project and assistance with implementation afterwards., Trial Registration Number: NCT04723719., Competing Interests: Competing interests: MD is participating in a Takeda-sponsored clinical trial in attention deficit hyperactivity disorder. All other authors have no conflict of interest., (© Author(s) (or their employer(s)) 2023. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
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- 2023
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73. Sleep parameters and problems in adolescents with and without ADHD: A systematic review and meta-analysis.
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Marten F, Keuppens L, Baeyens D, Boyer BE, Danckaerts M, Cortese S, and Van der Oord S
- Abstract
Background: Adolescence is characterized by an increase in the rate of sleep problems, which might be even more pronounced in adolescents with ADHD. This systematic review with meta-analysis aimed to compare sleep in adolescents with and without ADHD, including sleep parameters, both subjectively and objectively measured, sleep problems and sleep hygiene., Methods: Medline, CINAHL, PsycINFO, EMBASE, ERIC, Web of Science, and PubMed databases were searched for studies with case-control designs (published between 1980 and 2022) directly comparing sleep in adolescents (12-25 years) with ADHD to typically developing controls. Standardized mean differences were calculated and a random-effects model was implemented using RevMan., Results: Overall, 6974 titles/abstracts and 205 full texts were screened, resulting in 13 eligible studies. The sample sizes range from 35 to 9846 with in total 2465 adolescents with ADHD and 18,417 controls. The data suggests that adolescents with ADHD report significantly more disturbed subjective sleep parameters (e.g., total sleep time; n = 7, SMD = 0.47, p < .001) and experience more sleep problems compared to typically developing peers (e.g., daytime sleepiness; n = 5, SMD = 0.54, p = .01). Only few studies objectively measured sleep and no significant differences were found between both groups ( n = 3) in any parameter. Differences in sleep hygiene could not be examined due to a limited number of studies., Conclusions: Adolescents with ADHD report significantly worsened subjectively sleep parameters and more sleep problems compared to controls. These findings are still preliminary as a limited number of studies was identified. Nevertheless, it is advised to routinely include sleep assessment in the ADHD diagnostic process. More research is needed with a focus on objective measurement and sleep hygiene in ADHD., Competing Interests: MD is participating in a Takeda‐sponsored clinical trial in ADHD. SC serves on the JCPP Advances Editorial Advisory Board. SC declares honoraria and reimbursement for travel and accommodation expenses for lectures from the following non‐profit associations: Association for Child and Adolescent Central Health (ACAMH), Canadian ADHD Alliance Resource (CADDRA), British Association of Pharmacology (BAP), and from Healthcare Convention for educational activity on ADHD. The remaining authors have declared that they have no competing or potential conflicts of interest., (© 2023 The Authors. JCPP Advances published by John Wiley & Sons Ltd on behalf of Association for Child and Adolescent Mental Health.)
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- 2023
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74. Commentary: Why treatment is the best choice for childhood mental disorders - a commentary on Roest et al. (2022).
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Dekkers TJ, Groenman AP, Cuijpers P, Hoekstra PJ, Luman M, Orobio de Castro B, Overbeek G, Popma A, Rommelse N, Salemink E, Stikkelbroek YAJ, van den Hoofdakker BJ, van der Oord S, and Leijten P
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- Child, Humans, Systematic Reviews as Topic, Mental Disorders therapy, Neurodevelopmental Disorders
- Abstract
An important question in mental healthcare for children is whether treatments are effective and safe in the long run. Here, we comment on a recent editorial perspective by Roest et al. (2022), who argue, based on an overview of systematic reviews, 'that there is no convincing evidence that interventions for the most common childhood disorders are beneficial in the long term'. We believe that the available evidence does not justify this conclusion and express our concern regarding the harmful effects of their message. We show that there is evidence to suggest beneficial longer term treatment effects for each of the disorders and explain why evidence-based treatment should be offered to children with mental disorders., (© 2022 The Authors. Journal of Child Psychology and Psychiatry published by John Wiley & Sons Ltd on behalf of Association for Child and Adolescent Mental Health.)
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- 2023
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75. Distance learning during the COVID-19 pandemic for children with ADHD and/or ASD: a European multi-center study examining the role of executive function deficits and age.
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Thorell LB, Fuermaier ABM, Christiansen H, Steinmayr R, Baeyens D, de la Peña AG, Groom MJ, Idrees I, van der Oord S, van den Hoofdakker BJ, Luman M, Mammarella IC, and Skoglund C
- Abstract
Background: One of the COVID-19 pandemic consequences that has affected families the most is school lockdowns. Some studies have shown that distance learning has been especially challenging for families with a child with neurodevelopmental disorders such as ADHD or ASD. However, previous studies have not taken the heterogeneity of these disorders into account. The aim of the present study was therefore to investigate differences between families with a child with ADHD, ASD, or both conditions, and to examine the role of underlying deficits in executive functioning (EF) in both children and parents in relation to negative and positive effects of distance learning., Methods: Survey data assessing both negative and positive experiences of distance learning were collected from parents with a child aged 5-19 years in seven Western European countries: the UK, Germany, Spain, Sweden, the Netherlands, Italy, and Belgium. Altogether, the study included 1010 families with a child with ADHD and/or ASD and an equally large comparison group of families with a child without mental health problems. We included measures of three different types of negative effects (i.e., effects on the child, effects on the parent, and lack of support from school) and positive effects on the family., Results: Results confirmed that families with a child with ADHD, ASD or a combination of ADHD and ASD showed higher levels of both negative and positive effects of distance learning than the comparison group. However, few differences were found between the clinical groups. Group differences were more pronounced for older compared to younger children. Regarding the role of both ADHD/ASD diagnosis and EF deficits, primarily children's EF deficits contributed to high levels of negative effects. Parent EF deficits did not contribute significantly beyond the influence of child EF deficits. Families of children with ADHD/ASD without EF deficits experienced the highest levels of positive effects., Conclusions: School closings during COVID-19 have a major impact on children with EF problems, including children with neurodevelopmental disorders. The present study emphasizes that schools should not focus primarily on whether a student has a neurodevelopmental disorder, but rather provide support based on the student's individual profile of underlying neuropsychological deficits., (© 2022. The Author(s).)
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- 2022
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76. Attachment Representation Moderates the Effectiveness of Behavioral Parent Training Techniques for Children with ADHD: Evidence from a Randomized Controlled Microtrial.
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Hornstra R, Dekkers TJ, Bosmans G, van den Hoofdakker B, and van der Oord S
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- Behavior Therapy methods, Child, Humans, Parenting, Parents education, Attention Deficit Disorder with Hyperactivity therapy, Problem Behavior
- Abstract
Behavioral parent training is an evidence-based intervention for children with attention-deficit/hyperactivity disorder (ADHD), but knowledge on the differential effects of behavioral techniques for specific subgroups of children is very limited. Attachment representations of children with ADHD may affect how receptive children are to changes in parenting. In this study, we investigated whether specific behavioral techniques were more or less effective for children with ADHD in relation to their attachment representations. We included parents of 74 children with ADHD (4-11 years, M = 8.15) who took part in a larger randomized controlled microtrial in which they were randomized to a two session training in antecedent-based techniques (i.e., stimulus control techniques: rules, instructions; n = 26), a two session training in consequent-based techniques (i.e., contingency management techniques: praise, rewards, ignoring; n = 25) or a waitlist control condition (n = 23). We examined whether attachment representation moderated the effectiveness of a) training versus waitlist, and b) antecedent- versus consequent-based techniques. Attachment representations were measured with a story stem task, the intervention outcome was daily parent-rated problem behaviors of the children. Attachment representation did not moderate the effects of the training compared to the waitlist. However, compared to antecedent-based techniques, consequent-based techniques were less effective for more securely and less disorganized attached children, and particularly effective for more disorganized attached children. This was the first study examining attachment as a moderator of behavioral techniques for ADHD. If replicated, the findings of this study can be used for treatment development and tailoring., (© 2022. The Author(s).)
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- 2022
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77. Effectiveness of Specific Techniques in Behavioral Teacher Training for Childhood ADHD Behaviors: Secondary Analyses of a Randomized Controlled Microtrial.
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Staff AI, van der Oord S, Oosterlaan J, Hornstra R, Hoekstra PJ, van den Hoofdakker BJ, and Luman M
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- Attention Deficit and Disruptive Behavior Disorders therapy, Behavior Therapy methods, Child, Humans, Attention Deficit Disorder with Hyperactivity therapy, Problem Behavior, Teacher Training
- Abstract
Behavioral teacher training is an effective intervention for children with attention-deficit/hyperactivity disorder (ADHD). Intervention effectiveness may be enhanced by including intervention components that carry the strongest evidence for their effectiveness. A previous article of this group showed that both antecedent- (i.e., stimulus-control) and consequent-based (i.e., contingency management) techniques were highly effective in reducing daily teacher-rated, individually selected problem behaviors in a specific situation of the child. Effects were observed up to three months post intervention. Here, we tested whether effects were also present in teacher-rated and masked DSM-based assessments that comprise the full range of ADHD and oppositional defiant disorder (ODD) symptoms, as well as on teacher-rated impairment. Teachers of 90 children with (subthreshold) ADHD (6-12 years) were randomly assigned to one of three conditions: a short (two sessions), individualized intervention consisting of either a) antecedent-based techniques or b) consequent-based techniques; or c) waitlist. Multilevel analyses showed that both sets of techniques were effective in reducing teacher-rated ADHD symptoms and impairment immediately after the intervention and up to three months later, as compared to waitlist. Masked observations of ADHD behavior were in line with teacher ratings, with effects being most pronounced for inattention. No effects on teacher-rated or masked ODD behavior were found. This study showed that antecedent- and consequent-based techniques were effective in improving classroom ADHD symptoms and impairment. Long-term changes in teacher-rated ADHD are promising. These results extend previous findings and show the potential of short individually tailored interventions in classroom settings as treatment of ADHD symptoms., (© 2022. The Author(s).)
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- 2022
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78. Studying Motivation in ADHD: The Role of Internal Motives and the Relevance of Self Determination Theory.
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Morsink S, Van der Oord S, Antrop I, Danckaerts M, and Scheres A
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- Humans, Motivation, Personal Satisfaction, Psychological Theory, Attention Deficit Disorder with Hyperactivity, Personal Autonomy
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Objective: Motivation is what moves us to act, what engages us in goal-directed behavior. The Self Determination Theory (SDT) is a motivational framework conceptualizing motivation-or internal motives-as a continuum of motivation qualities fueled by satisfaction of the three basic psychological needs Autonomy, Relatedness, and Competence. ADHD has been associated with motivational alterations that contribute to academic difficulties. However, ADHD theories and research are mainly focused on the effects of reinforcement on behavior, with little attention for the broader definition of motivation, that is, internal motives. Therefore, the main objective here was to introduce the SDT as theoretical framework within which we can develop relevant research questions about motivation in the field of ADHD., Method: To this end, we (i) present the SDT as a comprehensive motivational framework, and (ii) describe current motivation-related ADHD theories and research., Results: Based on this, we suggest how SDT can be used as a guiding framework in generating relevant research questions that can help broaden our understanding of the role motivation plays in individuals with ADHD., Conclusion: We conclude that ADHD research on motivation would benefit from (i) including internal motives as potential key mediators in the relation between environmental factors and behavior/symptoms; (ii) studying potential negative effects of external reinforcers intrinsic motivation, affect, and well-being. Finally, we conclude that this framework carries value for further development of clinical interventions for those with ADHD.
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- 2022
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79. The limits of motivational influence in ADHD: no evidence for an altered reaction to negative reinforcement.
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Van Dessel J, Sonuga-Barke EJS, Moerkerke M, Van der Oord S, Morsink S, Lemiere J, and Danckaerts M
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- Adolescent, Brain Mapping, Humans, Magnetic Resonance Imaging, Motivation, Reinforcement, Psychology, Reward, Attention Deficit Disorder with Hyperactivity
- Abstract
Functional magnetic resonance imaging studies have reported a diminished response in the brain's reward circuits to contingent cues predicting future monetary gain in adolescents with attention-deficit/hyperactivity disorder (ADHD). The situation with regard to monetary loss is less clear, despite recognition that both positive and negative consequences impact ADHD behaviour. Here, we employ a new Escape Monetary Loss Incentive task in an MRI scanner, which allows the differentiation of contingency and valence effects during loss avoidance, to examine ADHD-related alterations in monetary loss processing. There was no evidence of atypical processing of contingent or non-contingent monetary loss cues in ADHD - either in terms of ratings of emotional and motivational significance or brain responses. This suggests that the ability to process contingencies between performance and negative outcomes is intact in ADHD and that individuals with ADHD are no more (or less) sensitive to negative outcomes than controls. This latter finding stands in stark contrast to recent evidence from a similar task of atypical emotion network recruitment (e.g. amygdala) in ADHD individuals to cues predicting another negative event, the imposition of delay, suggesting marked specificity in the way they respond to negative events., (© The Author(s) 2021. Published by Oxford University Press.)
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- 2022
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80. Facial emotion recognition impairment predicts social and emotional problems in children with (subthreshold) ADHD.
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Staff AI, Luman M, van der Oord S, Bergwerff CE, van den Hoofdakker BJ, and Oosterlaan J
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- Child, Emotions, Facial Expression, Humans, Regression Analysis, Attention Deficit Disorder with Hyperactivity psychology, Cognitive Dysfunction, Facial Recognition
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Children with attention-deficit/hyperactivity disorder (ADHD) symptoms often experience social and emotional problems. Impaired facial emotion recognition has been suggested as a possible underlying mechanism, although impairments may depend on the type and intensity of emotions. We investigated facial emotion recognition in children with (subthreshold) ADHD and controls using a novel task with children's faces of emotional expressions varying in type and intensity. We further investigated associations between emotion recognition accuracy and social and emotional problems in the ADHD group. 83 children displaying ADHD symptoms and 30 controls (6-12 years) completed the Morphed Facial Emotion Recognition Task (MFERT). The MFERT assesses emotion recognition accuracy on four emotions using five expression intensity levels. Teachers and parents rated social and emotional problems on the Strengths and Difficulties Questionnaire. Repeated measures analysis of variance revealed that the ADHD group showed poorer emotion recognition accuracy compared to controls across emotions (small effect). The significant group by expression intensity interaction (small effect) showed that the increase in accuracy with increasing expression intensity was smaller in the ADHD group compared to controls. Multiple regression analyses within the ADHD group showed that emotion recognition accuracy was inversely related to social and emotional problems, but not prosocial behavior. Not only children with an ADHD diagnosis, but also children with subthreshold ADHD experience impairments in facial emotion recognition. This impairment is predictive for social and emotional problems, which may suggest that emotion recognition may contribute to the development of social and emotional problems in these children., (© 2021. The Author(s).)
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- 2022
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81. Meta-analysis: Which Components of Parent Training Work for Children With Attention-Deficit/Hyperactivity Disorder?
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Dekkers TJ, Hornstra R, van der Oord S, Luman M, Hoekstra PJ, Groenman AP, and van den Hoofdakker BJ
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- Behavior Therapy methods, Humans, Parent-Child Relations, Parenting psychology, Parents psychology, Attention Deficit Disorder with Hyperactivity psychology, Attention Deficit Disorder with Hyperactivity therapy
- Abstract
Objective: Behavioral parent training is an evidence-based intervention for children with attention-deficit/hyperactivity disorder (ADHD), but it is unknown which of its components are most effective. This meta-regression analysis investigated which specific behavioral techniques that parents learn in parent training are associated with effects on parental outcomes., Method: A search was performed for randomized controlled trials on parent training for children with ADHD, with positive parenting, negative parenting, parenting sense of competence, parent-child relationship quality, and parental mental health as outcome measures. After screening 23,026 publications, 29 studies contributing 138 effect sizes were included (N = 2,345). For each study, the dosage of 39 behavioral techniques was derived from intervention manuals, and meta-regression determined which techniques were related to outcomes., Results: Parent training had robust small- to medium-sized positive effects on all parental outcomes relative to control conditions, both for unblinded and probably blinded measures. A higher dosage of techniques focusing on the manipulation of antecedents of behavior was associated with better outcomes on parenting sense of competence and parental mental health, and a higher dosage of techniques focusing on reinforcement of desired behaviors was related to larger decreases in negative parenting. Higher dosages of psychoeducation were negatively related to parental outcomes., Conclusion: Although techniques were not investigated in isolation, the results suggested that manipulation of antecedents of behavior and reinforcement techniques are key components of parent training for children with ADHD in relation to parental outcomes. These exploratory findings may help to strengthen and tailor parent training interventions for children with ADHD., (Copyright © 2021 The Authors. Published by Elsevier Inc. All rights reserved.)
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- 2022
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82. Parental experiences of homeschooling during the COVID-19 pandemic: differences between seven European countries and between children with and without mental health conditions.
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Thorell LB, Skoglund C, de la Peña AG, Baeyens D, Fuermaier ABM, Groom MJ, Mammarella IC, van der Oord S, van den Hoofdakker BJ, Luman M, de Miranda DM, Siu AFY, Steinmayr R, Idrees I, Soares LS, Sörlin M, Luque JL, Moscardino UM, Roch M, Crisci G, and Christiansen H
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- Child, Humans, Mental Health, Pandemics, Parents psychology, COVID-19, Mental Disorders epidemiology
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The aim of the present study was to examine parental experiences of homeschooling during the COVID-19 pandemic in families with or without a child with a mental health condition across Europe. The study included 6720 parents recruited through schools, patient organizations and social media platforms (2002 parents with a child with a mental health condition and 4718 without) from seven European countries: the UK (n = 508), Sweden (n = 1436), Spain (n = 1491), Belgium (n = 508), the Netherlands (n = 324), Germany (n = 1662) and Italy (n = 794). Many parents reported negative effects of homeschooling for themselves and their child, and many found homeschooling to be of poor quality, with insufficient support from schools. In most countries, contact with teachers was limited, leaving parents with primary responsibility for managing homeschooling. Parents also reported increased levels of stress, worry, social isolation, and domestic conflict. A small number of parents reported increased parental alcohol/drug use. Some differences were found between countries and some negative experiences were more common in families with a child with a mental health condition. However, differences between countries and between families with and without a mental health condition were generally small, indicating that many parents across countries reported negative experiences. Some parents also reported positive experiences of homeschooling. The adverse effects of homeschooling will likely have a long-term impact and contribute to increased inequalities. Given that school closures may be less effective than other interventions, policymakers need to carefully consider the negative consequences of homeschooling during additional waves of the COVID-19 pandemic and future pandemics., (© 2021. The Author(s).)
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- 2022
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83. An Individual Participant Data Meta-analysis: Behavioral Treatments for Children and Adolescents With Attention-Deficit/Hyperactivity Disorder.
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Groenman AP, Hornstra R, Hoekstra PJ, Steenhuis L, Aghebati A, Boyer BE, Buitelaar JK, Chronis-Tuscano A, Daley D, Dehkordian P, Dvorsky M, Franke N, DuPaul GJ, Gershy N, Harvey E, Hennig T, Herbert S, Langberg J, Mautone JA, Mikami AY, Pfiffner LJ, Power TJ, Reijneveld SA, Schramm SA, Schweitzer JB, Sibley MH, Sonuga-Barke E, Thompson C, Thompson M, Webster-Stratton C, Xie Y, Luman M, van der Oord S, and van den Hoofdakker BJ
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- Adolescent, Attention Deficit and Disruptive Behavior Disorders, Behavior Therapy, Child, Child, Preschool, Humans, Attention Deficit Disorder with Hyperactivity drug therapy, Conduct Disorder, Problem Behavior
- Abstract
Objective: Behavioral interventions are well established treatments for children with attention-deficit/hyperactivity disorder (ADHD). However, insight into moderators of treatment outcome is limited., Method: We conducted an individual participant data meta-analysis (IPDMA), including data of randomized controlled behavioral intervention trials for individuals with ADHD <18 years of age. Outcomes were symptoms of ADHD, oppositional defiant disorder (ODD), and conduct disorder (CD) and impairment. Moderators investigated were symptoms and impairment severity, medication use, age, IQ, sex, socioeconomic status, and single parenthood., Results: For raters most proximal to treatment, small- to medium-sized effects of behavioral interventions were found for symptoms of ADHD, inattention, hyperactivity/impulsivity (HI), ODD and CD, and impairment. Blinded outcomes were available only for small preschool subsamples and limited measures. CD symptoms and/or diagnosis moderated outcome on ADHD, HI, ODD, and CD symptoms. Single parenthood moderated ODD outcome, and ADHD severity moderated impairment outcome. Higher baseline CD or ADHD symptoms, a CD diagnosis, and single parenthood were related to worsening of symptoms in the untreated but not in the treated group, indicating a protective rather than an ameliorative effect of behavioral interventions for these children., Conclusion: Behavioral treatments are effective for reducing ADHD symptoms, behavioral problems, and impairment as reported by raters most proximal to treatment. Those who have severe CD or ADHD symptoms, a CD diagnosis, or are single parents should be prioritized for treatment, as they may evidence worsening of symptoms in the absence of intervention., (Copyright © 2021 The Authors. Published by Elsevier Inc. All rights reserved.)
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- 2022
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84. Attachment Representations in Children with and without Attention-Deficit/Hyperactivity Disorder (ADHD).
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Dekkers TJ, Hornstra R, van den Hoofdakker BJ, de Jong SRC, Schaaf JV, Bosmans G, and van der Oord S
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Attention-Deficit/Hyperactivity Disorder (ADHD) in children is associated with several adverse family characteristics, such as higher parenting stress, more conflicted parent-child relationships, lower parental competence, and higher levels of parental psychopathology. Hence, children with ADHD more often grow up under suboptimal circumstances, which may impact the development of their attachment representations. Here, we investigated whether children with ADHD have more insecure and disorganized attachment representations than their typically developing peers, and which factors could explain this association. We included 104 children between 4 and 11 years old, 74 with ADHD (without Conduct Disorder) and 30 typically developing control children. Children completed a state-of-the-art story stem task to assess their attachment representation, and we measured parents' expressed emotion (as an index of parent-child relationship quality), parents' perceived sense of competence, parental education levels, and parent-rated ODD symptoms of the child. We found that, after controlling for multiple comparisons, children with ADHD had less secure and more ambivalent and disorganized attachment representations relative to their typically developing peers. These group differences were independent of comorbid ODD and parental education levels. There were no group differences on avoidant attachment representations. Explorative analyses within the ADHD group showed that attachment representations were not related to parent-child relationship quality, perceived parenting competence, parental education levels, and comorbid ODD symptoms. We conclude that children with ADHD disproportionately often have attachment problems. Although this conclusion is important, treatment implications of this co-occurrence are yet unclear as research on ADHD and attachment is still in its infancy.
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- 2021
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85. Which Techniques Work in Behavioral Parent Training for Children with ADHD? A Randomized Controlled Microtrial.
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Hornstra R, van der Oord S, Staff AI, Hoekstra PJ, Oosterlaan J, van der Veen-Mulders L, Luman M, and van den Hoofdakker BJ
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- Child, Family, Humans, Parents, Attention Deficit Disorder with Hyperactivity therapy
- Abstract
Objective: Behavioral parent training (BPT) is an evidence-based intervention for children with attention-deficit/hyperactivity disorder (ADHD), but little is known about the effects of separate techniques parents learn in BPT., Method: In a three-armed randomized controlled microtrial including parents of 92 children (4-12 years) with ADHD, we examined the efficacy of two sessions parent training involving either stimulus control techniques (antecedent-based condition (AC)) or contingency management techniques (consequent-based condition (CC)), compared to a waitlist. Primary outcome was daily parent-rated problem behaviors, secondary outcomes were parent-rated symptoms of ADHD and oppositional defiant disorder (ODD), and mental health-care consumption. Measures were completed at baseline (T0), immediately after the training (T1), at two weeks (T2) and three months (T3) follow-up. We also explored whether child and parent characteristics moderated treatment effects., Results: Compared to the waitlist, in the AC, daily rated problem behaviors improved at T1 ( d = .56) and T2 ( d = .65); in the CC, these behaviors only improved at T2 ( d = .53). Daily rated problem behaviors within both conditions remained stable between T2 and T3. In the AC compared to the other conditions, inattention symptoms decreased at T1 and T2. For both active conditions compared to waitlist, hyperactivity-impulsivity symptoms decreased only at T2 and ODD symptoms did not decrease. No moderators were identified. Mental health-care consumption after training was low and did not differ between the active conditions., Conclusions: Brief training of parents in antecedent- or consequent-based techniques improves problem behaviors of children with ADHD. Antecedent-based techniques appear to be especially important to target inattention.
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- 2021
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86. Systematic Review: Attention-Deficit/Hyperactivity Disorder and Instrumental Learning.
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Hulsbosch AK, De Meyer H, Beckers T, Danckaerts M, Van Liefferinge D, Tripp G, and Van der Oord S
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- Child, Conditioning, Operant, Humans, Learning, Attention Deficit Disorder with Hyperactivity drug therapy, Methylphenidate
- Abstract
Objective: Although instrumental learning deficits are, among other deficits, assumed to contribute to attention-deficit/hyperactivity disorder (ADHD), no comprehensive systematic review of instrumental learning deficits in ADHD exists. This review examines differences between ADHD and typically developing (TD) children in basic instrumental learning and the effects of reinforcement form, magnitude, schedule, and complexity, as well as effects of medication, on instrumental learning in children with ADHD., Method: A systematic search of PubMed, PsyINFO, CINAHL, EMBASE+EMBASE CLASSIC, ERIC, and Web of Science was conducted for articles up to March 16, 2020. Experimental studies comparing instrumental learning between groups (ADHD versus TD) or a manipulation of reinforcement/medication within an ADHD sample were included. Quality of studies was assessed with an adapted version of the Hombrados and Waddington criteria to assess risk of bias in (quasi-) experimental studies., Results: A total of 19 studies from among 3,384 non-duplicate screened articles were included. No difference in basic instrumental learning was found between children with ADHD and TD children, nor effects of form or magnitude of reinforcement. Results regarding reinforcement schedule and reversal learning were mixed, but children with ADHD seemed to show deficits in conditional discrimination learning compared to TD children. Methylphenidate improved instrumental learning in children with ADHD. Quality assessment showed poor quality of studies with respect to sample sizes and outcome and missing data reporting., Conclusion: The review identified very few and highly heterogenous studies, with inconsistent findings. No clear deficit was found in instrumental learning under laboratory conditions. Children with ADHD do show deficits in complex forms of learning, that is, conditional discrimination learning. Clearly more research is needed, using more similar task designs and manipulations., (Copyright © 2021 The Authors. Published by Elsevier Inc. All rights reserved.)
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- 2021
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87. Effectiveness of Specific Techniques in Behavioral Teacher Training for Childhood ADHD: A Randomized Controlled Microtrial.
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Staff AI, van den Hoofdakker BJ, van der Oord S, Hornstra R, Hoekstra PJ, Twisk JWR, Oosterlaan J, and Luman M
- Subjects
- Adolescent, Child, Humans, Attention Deficit Disorder with Hyperactivity therapy, Teacher Training
- Abstract
Objective : Behavioral teacher training is the most effective classroom-based intervention for children with attention-deficit/hyperactivity disorder (ADHD). However, it is currently unknown which components of this intervention add to its effectiveness and for whom these are effective. Method : In this microtrial, teachers of 90 children with impairing levels of ADHD symptoms (6-12 years) were randomly assigned to one of three conditions: a short (2 sessions), individualized intervention consisting of either (A) antecedent-based techniques (stimulus control), (B) consequent-based techniques (contingency management) or (C) waitlist. Primary outcome was the average of five daily assessments of four individualized problem behaviors, assessed pre and post intervention and three months later. Moderation analyses were conducted to generate hypotheses on child, teacher and classroom factors that may contribute to technique effectiveness. Results : Multilevel analyses showed that both antecedent- and consequent-based techniques were equally and highly effective in reducing problem behaviors compared to the control condition (Cohen's d =.9); effects remained stable up to three months later. Child's age and class size were moderators of technique effectiveness. For younger children, consequent-based techniques were more effective than antecedent-based techniques, whereas for older children the effect was in the opposite direction. Further, beneficial effects of antecedent-based techniques increased when the number of students per class decreased, whilst effectiveness of consequent-based techniques did not depend on class size. Conclusions : This study shows that both antecedent- and consequent-based techniques are highly effective in reducing problem behavior of children with ADHD. Interventions may be adapted to the child's age and class size.
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- 2021
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88. Child neurocognitive functioning influences the effectiveness of specific techniques in behavioral teacher training for ADHD: Moderator analyses from a randomized controlled microtrial.
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Staff AI, Oosterlaan J, van der Oord S, Königs M, van den Hoofdakker BJ, and Luman M
- Abstract
Background: Childhood attention-deficit/hyperactivity disorder (ADHD) is associated with several neurocognitive impairments. Whether these impairments influence the effectiveness of techniques that are commonly used in behavioral teacher training for ADHD has not been investigated so far., Method: In this microtrial, teachers of 90 children with ADHD symptoms (6-12 years) were randomly assigned to a short intervention consisting of either antecedent-based (stimulus-control) techniques or consequent-based (contingency management) techniques, or to a waitlist control condition. Primary outcome was the daily assessment of individually selected problem behavior, assessed pre- and post-intervention. Potential neurocognitive moderators of treatment effect included teacher ratings of cognitive control, reward, and punishment sensitivity, and measures derived from computerized neurocognitive tasks, including attentional lapses, interference control, visuospatial working memory, and emotional functioning. Intervention condition by moderator interactions were assessed in separate multilevel mixed models., Results: Lapses of attention, working memory, and emotional functioning interacted with intervention effectiveness. Antecedent-based techniques were effective independent of these neurocognitive functions; consequent-based techniques were (more) effective when these functions were more impaired. The effectiveness of techniques was neither related to interference control nor to teacher-rated neurocognitive functioning., Conclusions: This study showed that child neurocognitive functioning influences the effectiveness of behavioral teacher techniques for children with ADHD symptoms. Findings suggest that antecedent-based techniques may be effective for all children, while consequent-based techniques have added value particularly for children who suffer from low visuospatial working memory, low emotional functioning, and/or large numbers of attentional lapses., Competing Interests: The authors report no conflict of interest., (© 2021 The Authors. JCPP Advances published by John Wiley & Sons Ltd on behalf of Association for Child and Adolescent Mental Health.)
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- 2021
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89. Predictors and moderators of treatment outcome for single incident paediatric PTSD: a multi-centre randomized clinical trial.
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de Roos C, Zijlstra B, Perrin S, van der Oord S, Lucassen S, Emmelkamp P, and de Jongh A
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- Adolescent, Anxiety psychology, Female, Humans, Male, Time Factors, Treatment Outcome, Waiting Lists, Cognitive Behavioral Therapy, Eye Movement Desensitization Reprocessing, Parents psychology, Stress Disorders, Post-Traumatic therapy
- Abstract
Background: With few RCTs having compared active treatments for paediatric PTSD, little is known about whether or which baseline (i.e. pre-randomization) variables predict or moderate outcomes in the evaluated treatments., Objective: To identify predictors and moderators of paediatric PTSD outcomes for Eye Movement Desensitization and Reprocessing Therapy (EMDR) and Cognitive Behavioural Writing Therapy (CBWT)., Method: Data were obtained as part of a multi-centre, randomized controlled trial of up to six sessions (up to 45 minutes each) of either EMDR therapy, CBWT, or wait-list, involving 101 youth (aged 8-18 years) with a PTSD diagnosis (full/subthreshold) tied to a single event. The predictive and moderating effects of the child's baseline sociodemographic and clinical characteristics, and parent's psychopathology were evaluated using linear mixed models (LMM) from pre- to post-treatment and from pre- to 3- and 12-month follow-ups., Results: At post-treatment and 3-month follow-up, youth with an index trauma of sexual abuse, severe symptoms of PTSD, anxiety, depression, more comorbid disorders, negative posttraumatic beliefs, and with a parent with more severe psychopathology fared worse in both treatments. For children with more severe self-reported PTSD symptoms at baseline, the (exploratory) moderator analysis showed that the EMDR group improved more than the CBWT group, with the opposite being true for children and parents with a less severe clinical profile., Conclusions: The most consistent finding from the predictor analyses was that parental symptomatology predicted poorer outcomes, suggesting that parents should be assessed, supported and referred for their own treatment where indicated. The effect of the significant moderator variables was time-limited, and given the large response rate (>90%) and brevity (<4 hours) of both treatments, the present findings suggest a focus on implementation and dissemination, rather than tailoring, of evidence-based trauma-focused treatments for paediatric PTSD tied to a single event., Competing Interests: No potential conflict of interest was reported by the author(s)., (© 2021 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.)
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- 2021
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90. The Validity of Teacher Rating Scales for the Assessment of ADHD Symptoms in the Classroom: A Systematic Review and Meta-Analysis.
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Staff AI, Oosterlaan J, van der Oord S, Hoekstra PJ, Vertessen K, de Vries R, van den Hoofdakker BJ, and Luman M
- Subjects
- Child, Cognition, Faculty, Humans, Impulsive Behavior, Psychiatric Status Rating Scales, Attention Deficit Disorder with Hyperactivity diagnosis
- Abstract
Objective: To assess attention-deficit/hyperactivity disorder (ADHD) symptoms in the classroom, most often teacher rating scales are used. However, clinical interviews and observations are recommended as gold standard assessment. This systematic review and meta-analysis evaluates the validity of teacher rating scales. Method: Twenty-two studies ( N = 3,947 children) assessing ADHD symptoms using teacher rating scale and either semi-structured clinical interview or structured classroom observation were meta-analyzed. Results: Results showed convergent validity for rating scale scores, with the strongest correlations ( r = .55-.64) for validation against interviews, and for hyperactive-impulsive behavior. Divergent validity was confirmed for teacher ratings validated against interviews, whereas validated against observations this was confirmed for inattention only. Conclusion: Teacher rating scales appear a valid and time-efficient measure to assess classroom ADHD; although validated against semi-structured clinical interviews, there were only a few studies available. Low correlations between ratings and structured observations of inattention suggest that observations could add information above rating scales.
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- 2021
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91. Conditional Learning Deficits in Children with ADHD can be Reduced Through Reward Optimization and Response-Specific Reinforcement.
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De Meyer H, Tripp G, Beckers T, and van der Oord S
- Subjects
- Child, Conditioning, Classical, Humans, Learning, Reinforcement, Psychology, Reward, Attention Deficit Disorder with Hyperactivity therapy
- Abstract
When children with ADHD are presented with behavioral choices, they struggle more than Typically Developing [TD] children to take into account contextual information necessary for making adaptive choices. The challenge presented by this type of behavioral decision making can be operationalized as a Conditional Discrimination Learning [CDL] task. We previously showed that CDL is impaired in children with ADHD. The present study explores whether this impairment can be remediated by increasing reward for correct responding or by reinforcing correct conditional choice behavior with situationally specific outcomes (Differential Outcomes). An arbitrary Delayed Matching-To-Sample [aDMTS] procedure was used, in which children had to learn to select the correct response given the sample stimulus presented (CDL). We compared children with ADHD (N = 45) and TD children (N = 49) on a baseline aDMTS task and sequentially adapted the aDMTS task so that correct choice behavior was rewarded with a more potent reinforcer (reward manipulation) or with sample-specific (and hence response-specific) reinforcers (Differential Outcomes manipulation). At baseline, children with ADHD performed significantly worse than TD children. Both manipulations (reward optimization and Differential Outcomes) improved performance in the ADHD group, resulting in a similar level of performance to the TD group. Increasing the reward value or the response-specificity of reinforcement enhances Conditional Discrimination Learning in children with ADHD. These behavioral techniques may be effective in promoting the learning of adaptive behavioral choices in children with ADHD., (© 2021. The Author(s).)
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- 2021
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92. The World Federation of ADHD International Consensus Statement: 208 Evidence-based conclusions about the disorder.
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Faraone SV, Banaschewski T, Coghill D, Zheng Y, Biederman J, Bellgrove MA, Newcorn JH, Gignac M, Al Saud NM, Manor I, Rohde LA, Yang L, Cortese S, Almagor D, Stein MA, Albatti TH, Aljoudi HF, Alqahtani MMJ, Asherson P, Atwoli L, Bölte S, Buitelaar JK, Crunelle CL, Daley D, Dalsgaard S, Döpfner M, Espinet S, Fitzgerald M, Franke B, Gerlach M, Haavik J, Hartman CA, Hartung CM, Hinshaw SP, Hoekstra PJ, Hollis C, Kollins SH, Sandra Kooij JJ, Kuntsi J, Larsson H, Li T, Liu J, Merzon E, Mattingly G, Mattos P, McCarthy S, Mikami AY, Molina BSG, Nigg JT, Purper-Ouakil D, Omigbodun OO, Polanczyk GV, Pollak Y, Poulton AS, Rajkumar RP, Reding A, Reif A, Rubia K, Rucklidge J, Romanos M, Ramos-Quiroga JA, Schellekens A, Scheres A, Schoeman R, Schweitzer JB, Shah H, Solanto MV, Sonuga-Barke E, Soutullo C, Steinhausen HC, Swanson JM, Thapar A, Tripp G, van de Glind G, van den Brink W, Van der Oord S, Venter A, Vitiello B, Walitza S, and Wang Y
- Subjects
- Humans, Network Meta-Analysis, Publication Bias, Attention Deficit Disorder with Hyperactivity therapy
- Abstract
Background: Misconceptions about ADHD stigmatize affected people, reduce credibility of providers, and prevent/delay treatment. To challenge misconceptions, we curated findings with strong evidence base., Methods: We reviewed studies with more than 2000 participants or meta-analyses from five or more studies or 2000 or more participants. We excluded meta-analyses that did not assess publication bias, except for meta-analyses of prevalence. For network meta-analyses we required comparison adjusted funnel plots. We excluded treatment studies with waiting-list or treatment as usual controls. From this literature, we extracted evidence-based assertions about the disorder., Results: We generated 208 empirically supported statements about ADHD. The status of the included statements as empirically supported is approved by 80 authors from 27 countries and 6 continents. The contents of the manuscript are endorsed by 366 people who have read this document and agree with its contents., Conclusions: Many findings in ADHD are supported by meta-analysis. These allow for firm statements about the nature, course, outcome causes, and treatments for disorders that are useful for reducing misconceptions and stigma., (Copyright © 2021 The Author(s). Published by Elsevier Ltd.. All rights reserved.)
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- 2021
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93. Dissociating brain systems that respond to contingency and valence during monetary loss avoidance in adolescence.
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Van Dessel J, Danckaerts M, Moerkerke M, Van der Oord S, Morsink S, Lemiere J, and Sonuga-Barke E
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- Adolescent, Brain Mapping, Cues, Humans, Magnetic Resonance Imaging, Male, Reinforcement, Psychology, Brain diagnostic imaging, Reward
- Abstract
Negative reinforcement processes allow individuals to avoid negative and/or harmful outcomes. They depend on the brain's ability to differentiate; (i) contingency from non-contingency, separately from (ii) judgements about positive and negative valence. Thirty-three males (8-18 years) performed a cued reaction-time task during fMRI scanning to differentiate the brain's responses to contingency and valence during loss avoidance. In two conditions, cues indicated no -contingency between participants' responses and monetary loss - (1) CERTAIN LOSS (negative valence) of €0.20, €1 or €5 or (2) CERTAIN LOSS AVOIDANCE (positive valence). In a third condition, cues indicated a contingency between short reaction times and avoidance of monetary loss. As expected participants had shorter reaction times in this latter condition where CONDITIONAL LOSS AVOIDANCE cues activated salience and motor-response-preparation brain networks - independent of the relative valence of the contrast (CERTAIN LOSS or CERTAIN LOSS AVOIDANCE). Effects of valence were seen toward the session's end where CERTAIN LOSS AVOIDANCE cues activated ventral striatum, medial-orbitofrontal cortex and medial-temporal areas more than CERTAIN LOSS. CONDITIONAL LOSS AVOIDANCE trials with feedback indicating "success" activated ventral striatum more than "failure feedback". The findings support the hypothesis that brain networks controlling contingency and valence processes during negative reinforcement are dissociable., (Copyright © 2021 Elsevier Inc. All rights reserved.)
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- 2021
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94. Task-related motivation and academic achievement in children and adolescents with ADHD.
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Morsink S, Sonuga-Barke E, Van der Oord S, Van Dessel J, Lemiere J, and Danckaerts M
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- Adolescent, Child, Educational Status, Female, Humans, Male, Academic Success, Attention Deficit Disorder with Hyperactivity diagnosis, Motivation physiology
- Abstract
Academic impairment in individuals with attention-deficit/hyperactivity disorder (ADHD) is in part due to reduced motivation for academic tasks, which is likely to vary as a function of task characteristics. The current study employed a new questionnaire-the Child and Adolescent Motivational Profile (CHAMP)-to examine; (1) which task characteristic participants with ADHD perceive as most motivating relative to typically developing peers (TDP) and (2) whether these differences mediate academic functioning. 34 participants with ADHD and 435 TDP (8-16 years) completed the CHAMP. Academic achievement (grade point average) and self-reported positive/negative classroom experiences were recorded. No task characteristics were rated higher in terms of their motivational salience in the ADHD group than in the control sample. Marked/graded, Socially evaluated, Collaborative, Requiring focus and Cognitively challenging task characteristics were rated significantly lower by the ADHD group than controls. The lower rating of Socially evaluated was explained by comorbid ODD symptoms. Cognitively challenging was rated as particularly unmotivating by individuals with ADHD. ADHD was associated with a decreased GPA and a more negative classroom experience. The associations between ADHD and GPA/negative classroom experience were both partially mediated by scores on the Cognitively Challenging scale. For children and adolescents with ADHD tasks that are cognitively challenging were not particularly motivating. To increase task motivation, and improve academic performance of individuals with ADHD, it may be important to include rewarded task elements as they are appraised as particularly motivating by these individuals and this appraisal was similar to that of TDP.
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- 2021
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95. How to Improve Behavioral Parent and Teacher Training for Children with ADHD: Integrating Empirical Research on Learning and Motivation into Treatment.
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van der Oord S and Tripp G
- Subjects
- Attention Deficit Disorder with Hyperactivity psychology, Humans, Parents psychology, Quality Improvement, School Teachers psychology, Attention Deficit Disorder with Hyperactivity therapy, Parenting psychology, Parents education, Teacher Training
- Abstract
Attention deficit hyperactivity disorder [ADHD] is one of the most common psychiatric disorders of childhood with poor prognosis if not treated effectively. Recommended psychosocial evidence-based treatment for preschool and school-aged children is behavioral parent and teacher training [BPT]. The core elements of BPT are instrumental learning principles, i.e., reinforcement of adaptive and the ignoring or punishment of non-adaptive behaviors together with stimulus control techniques. BPT is moderately effective in reducing oppositional behavior and improving parenting practices; however, it does not reduce blinded ratings of ADHD symptoms. Also after training effects dissipate. This practitioner review proposes steps that can be taken to improve BPT outcomes for ADHD, based on purported causal processes underlying ADHD. The focus is on altered motivational processes (reward and punishment sensitivity), as they closely link to the instrumental processes used in BPT. Following a critical analysis of current behavioral treatments for ADHD, we selectively review motivational reinforcement-based theories of ADHD, including the empirical evidence for the behavioral predictions arising from these theories. This includes consideration of children's emotional reactions to expected and unexpected outcomes. Next we translate this evidence into potential ADHD-specific adjustments designed to enhance the immediate and long-term effectiveness of BPT programs in addressing the needs of children with ADHD. This includes the use of remediation strategies for proposed deficits in learning not commonly used in BPT programs and cautions regarding the use of punishment. Finally, we address how these recommendations can be effectively transferred to clinical practice.
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- 2020
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96. Effects of behavioural parent training for children with attention-deficit/hyperactivity disorder on parenting behaviour: a protocol for an individual participant data meta-analysis.
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Steenhuis L, Groenman AP, Hoekstra PJ, Hornstra R, Luman M, van der Oord S, and van den Hoofdakker BJ
- Subjects
- Adolescent, Behavior Therapy, Child, Humans, Meta-Analysis as Topic, Parenting, Parents, Attention Deficit Disorder with Hyperactivity therapy
- Abstract
Introduction: Behavioural parent training (BPT) is a well-established treatment for children with attention-deficit/hyperactivity disorder (ADHD). BPT is based on the hypothesis that improvements in parenting are mediators of improvements in children's behaviours. However, meta-analyses show considerate heterogeneity in effects of BPT on child outcomes, and meta-analyses on parenting outcomes are scarce. Also, few studies have investigated parenting factors as mediators of child outcomes. This study aims to examine the effects and moderators of BPT on parenting outcomes and whether improvements in parenting mediate amelioration of behaviour and impairment in children with ADHD., Methods and Analyses: We will conduct an individual participant data meta-analysis (IPDMA), making use of individual data of existing trials, and giving the opportunity for highly powered moderator analyses. This IPDMA will be performed by the Psychosocial ADHD INTervention (PAINT) collaboration. We will include randomised controlled trials of BPT, for individuals with ADHD below 18 years old. Systematic searches have been performed to locate relevant papers. Authors are currently contacted to share their data with the PAINT-IPDMA project. We will examine effects of BPT on parenting outcomes (eg, positive and negative parenting, management of affect, perceived parenting competence, parenting stress), moderators of these effects (eg, parental depression, parenting stress, severity of the child's ADHD symptoms) and subsequently perform mediation analyses where parenting outcomes are modelled as mediators of child outcomes (eg, symptoms and severity of ADHD, comorbid psychopathology and impairment)., Ethics and Dissemination: We will include data from randomised control trials for which ethical approval has been received and consent forms have been signed. Deidentified data will be provided by the original investigators. We aim to disseminate our findings through peer-reviewed scientific journals, presentations at (inter)national scientific meetings, newsletters, the website of our project and the Dutch academic workspace ADHD., Prospero Registration Number: CRD42017069877., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2020. Re-use permitted under CC BY. Published by BMJ.)
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- 2020
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97. The amygdala in adolescents with attention-deficit/hyperactivity disorder: Structural and functional correlates of delay aversion.
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Van Dessel J, Sonuga-Barke E, Moerkerke M, Van der Oord S, Lemiere J, Morsink S, and Danckaerts M
- Subjects
- Adolescent, Amygdala diagnostic imaging, Brain, Brain Mapping, Humans, Magnetic Resonance Imaging, Male, Attention Deficit Disorder with Hyperactivity diagnostic imaging
- Abstract
Objectives: Recent magnetic resonance imaging (MRI) studies implicate structural alterations of amygdala, a brain region responsible for processing and experiencing negative emotions, in adolescents with attention-deficit/hyperactivity disorder (ADHD). Here we examined ADHD-related structural correlates of amygdala functional activity elicited during a functional MRI task designed to test behavioural and brain responses to the imposition of delay - an event known to both elicit amygdala hyperactivation and aversity in ADHD., Methods: Structural MRI scans from 28 right-handed male adolescents with combined type ADHD and 32 age-matched controls were analysed. Regional grey matter volumes of ADHD and control participants ( P [FWE] < 0.05) were correlated with delay aversion self-ratings and neural activity in response to delay-related cues on the Escape Delay Incentive fMRI task., Results: ADHD was associated with significantly reduced volumes in bilateral amygdala, parahippocampal and temporal gyrus ( P [FWE] < 0.05), greater basolateral amygdala activation to delay-related cues ( P [FWE] < 0.05) and higher delay aversion self-ratings. Amygdala volume reductions were significantly correlated with, and statistically mediated the pathway from ADHD to, delay-cue-related amygdala hyperactivity ( P < 0.01) and self-reported delay aversion ( P < 0.01)., Conclusions: We provide the first evidence of the functional significance of reduced amygdala volumes in adolescents with ADHD by highlighting its relation to delay-induced brain activity that is linked to delay aversion.
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- 2020
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98. ADHD management during the COVID-19 pandemic: guidance from the European ADHD Guidelines Group.
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Cortese S, Asherson P, Sonuga-Barke E, Banaschewski T, Brandeis D, Buitelaar J, Coghill D, Daley D, Danckaerts M, Dittmann RW, Doepfner M, Ferrin M, Hollis C, Holtmann M, Konofal E, Lecendreux M, Santosh P, Rothenberger A, Soutullo C, Steinhausen HC, Taylor E, Van der Oord S, Wong I, Zuddas A, and Simonoff E
- Subjects
- COVID-19, Child, Humans, Attention Deficit Disorder with Hyperactivity therapy, Coronavirus Infections epidemiology, Pandemics, Pneumonia, Viral epidemiology, Practice Guidelines as Topic
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- 2020
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99. Reinforcement Contingency Learning in Children with ADHD: Back to the Basics of Behavior Therapy.
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De Meyer H, Beckers T, Tripp G, and van der Oord S
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- Attention Deficit Disorder with Hyperactivity therapy, Child, Extinction, Psychological physiology, Female, Humans, Male, Attention Deficit Disorder with Hyperactivity physiopathology, Behavior Therapy, Conditioning, Operant physiology, Reinforcement, Psychology
- Abstract
Reinforcement deficits in ADHD may affect basic operant learning processes relevant for Behavioral Treatment. Behavior acquired under partial reinforcement extinguishes less readily after the discontinuation of reinforcement than behavior acquired under continuous reinforcement, a phenomenon known as the Partial Reinforcement Extinction Effect [PREE], which has great relevance for the emergence of behavioral persistence. The present study examined acquisition and extinction of operant responding under partial and continuous reinforcement in children with and without ADHD. In addition, we evaluated the effectiveness of gradual stretching the reinforcement rate during acquisition for remedying potential acquisition or extinction deficits under partial reinforcement in ADHD. In an operant learning task designed to mimic the task confronted by an animal in a Skinner box, 62 typically developing and 49 children with ADHD (age: 8-12) were presented with a continuous, partial or gradually stretching reinforcement scheme followed by extinction. Both groups of children acquired the instrumental response more slowly and exhibited more behavioral persistence (reduced extinction) when responding was initially reinforced under partial relative to continuous reinforcement, with no differences between groups. Progressive ratio stretching resulted in faster acquisition than partial reinforcement yet promoted equal behavioral persistence, again without differences between ADHD and TD groups. Unlike suggested by previous research, children with ADHD exhibit neither an acquisition deficit under partial reinforcement nor a deficit in PREE. Of relevance for Behavioral Treatment, gradual reinforcement stretching can be used to facilitate response acquisition over purely partial reinforcement while maintaining equal behavioral persistence upon reward discontinuation.
- Published
- 2019
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100. Does executive function capacity moderate the outcome of executive function training in children with ADHD?
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Dovis S, Maric M, Prins PJM, and Van der Oord S
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- Attention Deficit Disorder with Hyperactivity psychology, Child, Double-Blind Method, Female, Humans, Male, Neuropsychological Tests, Video Games psychology, Attention Deficit Disorder with Hyperactivity therapy, Cognitive Remediation methods, Executive Function
- Abstract
Executive functioning (EF) training interventions aimed at ADHD-symptom reduction have limited results. However, EF training might only be effective for children with relatively poor EF capacity. This randomized double-blind placebo-controlled study examined whether pre-training EF capacity moderates the outcome of an EF-training intervention on measures of near transfer (EF performance) and far transfer (ADHD symptoms and parent-rated EF behavior) immediately after treatment and at 3-month follow-up. Sixty-one children with ADHD (aged 8-12) were randomized either to an EF-training condition where working memory, inhibition and cognitive flexibility were trained, or to a placebo condition. Single moderation models were used. All significant moderation outcomes had small effect sizes. After Bonferroni correction, there were no significant moderators of treatment outcome. Children with poor EF capacity do not benefit more from EF training than from placebo training. Training only EF-impaired children will probably not improve outcomes of EF training studies.
- Published
- 2019
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