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Abstract Background Perinatal borderline personality disorder (BPD) is a common condition in perinatal mental health settings with few specialised treatment options, and little is known about the enduring effects of available treatment programs. This study explored the follow-up experiences of women with BPD after completing Mother-Infant Dialectical Behaviour Therapy (MI-DBT). Methods Semi-structured interviews were conducted with eight women who had completed MI-DBT 3 years prior. Reflexive Thematic Analysis was used to analyse the interviews to gain a richer understanding of these mothers’ lived experience. Results A thematic analysis generated four main themes which indicated that participants found that MI-DBT improved their ability to hold their child in mind, be aware of their own internal state and behaviours, manage their own emotional reactions and stay calm, and manage interpersonal interactions within adult relationships. Mothers with perinatal borderline personality disorder also highlighted the need for ongoing support in the context of parenting. Conclusions This study is the first of its kind to explore the longer-term experiences of mothers following such an intervention, giving voice to this vulnerable group of women. The findings of this study provide a greater understanding of the complex challenges experienced as part of parenting for mothers with borderline personality disorder, and provides both insight into mothers’ experiences of life after MI-DBT and the impact of the program on their lives. The clinical and research implications of the study’s findings are discussed. Trial registration This research was retrospectively registered on 07/03/2024, ACTRN12624000225516.

Abstract Background Interpersonal impairments in patients diagnosed with borderline personality disorder (BPD) are characterized by the fear of being rejected and high levels of loneliness. Potential underlying factors are alterations in the processing of social interactions and the associated perceptions of social partners. In this regard, BPD patients tend to attribute the cause of negative rather than positive events to their own person and to perceive others as less trustworthy than healthy controls (HCs). To date, no study has investigated whether the effect of experimentally influenced causal attributions of social interactions on the perception of a social partner differs between BPD patients and HCs. Methods A new virtual reality paradigm was developed to investigate the perception of benevolence following the induction of social rejection and acceptance, while experimentally manipulating whether an external cause for this behavior was provided. The data of 62 participants (32 HCs, 30 BPD patients) were analyzed using linear mixed-effects models. Associations of benevolence ratings with attributional style, rejection sensitivity, self-esteem, childhood trauma, and loneliness were investigated via correlational and multiple linear regression analyses. Results Across both groups, a social partner was rated as less benevolent following rejection than following acceptance. An external explanation mitigated this negative effect of rejection. Overall, benevolence ratings were lower in BPD patients than in HCs. This group difference was stronger following acceptance than following rejection. Independent of acceptance and rejection, an external explanation was associated with a higher level of benevolence only in the HC group. No associations of the effects of the experimental conditions with attributional style, childhood trauma, rejection sensitivity, self-esteem, or loneliness were found. Conclusion Our findings indicate that acceptance and provided external explanations for rejection have a less positive impact on the perception of a social partner’s attitude toward oneself in BPD patients than in HCs. More research is needed to identify predictors of benevolence perception and which steps of social information processing are altered. The therapeutic implications include the importance of strengthening the perception and enjoyment of being accepted as well as improving the mentalizing ability of BPD patients.

Abstract Background Engagement in Non-Suicidal Self-Injury (NSSI) is high among adolescents with borderline personality disorder (BPD), but the trajectory of NSSI in the transition period from adolescence to adulthood is unclear, and studies that look at predictors of persistence are highly needed. Methods This study followed 111 adolescents aged 14–17 with BPD over a five-year period to observe the prevalence and predictors of NSSI. Information on NSSI was based on both self-report and clinician-administered interviews. Results At the outset, 92.8% reported a history of NSSI, with an average of nearly five different types of NSSI. Despite this high initial prevalence, the rates of NSSI within the past two weeks decreased over time from 48% at baseline to 26% after one year, and further to 10% after two years. After five years, 37% reported engaging in NSSI within the past six months. Notably, all but one participant who reported NSSI after five years had engaged in NSSI already at baseline. The study identified that higher adolescent-rated but lower parent-rated BPD severity was associated with engagement in NSSI at baseline. Furthermore, ongoing NSSI after five years was predicted by lower parent-rated BPD severity and externalizing behaviors. Conclusions NSSI is frequent in the early course of BPD, and persists in more than one-third after five years. Our findings highlight that baseline engagement in NSSI is a risk factor for persistence of NSSI in the transition period into early adulthood. Furthermore, the findings underscore the significance of integrating both adolescent and parent perspectives on BPD pathology in the assessment and management of NSSI.

Abstract Background Insecure adult attachment has been associated with psychiatric disorders characterized by emotional dysregulation, such as borderline personality disorder (BPD), bipolar disorder (BD) and attention deficit/hyperactivity disorder (ADHD). However, little is known about the differences in attachment patterns between these diagnostic groups. The aim of this study was to identify clusters of adult attachment style in a cross-diagnostic group of patients with BDP and/or BD and/or ADHD and explore the characteristics of these clusters based on temperament profile, childhood trauma and psychiatric diagnoses. Methods K-means cluster analysis was used to identify subgroups, based on the Attachment Style Questionnaire Short Form dimensions, in a clinical cohort of 150 young adults (113 women and 37 men, mean age ± SD = 23.3 ± 2.1) diagnosed with BPD, and/or BD, and/or ADHD. Results Three distinct clusters were identified: a secure, an insecure/avoidant-anxious and an insecure/avoidant cluster. These three clusters differed in temperament profile and related psychiatric diagnoses. Conclusions The three clusters of attachment in individuals with BPD, BD and/or ADHD could support differentiation between the disorders as well provide information usable for planning of treatment.

Abstract Background Despite being one of the most popular measures of borderline pathology in adolescents, only one study has evaluated clinical cut-off scores for the Borderline Personality Features Scale for Children (BPFS-C) using a small sample without a healthy comparison group (Chang B, Sharp C, Ha C. The Criterion Validity of the Borderline Personality Features Scale for Children in an Adolescent Inpatient Setting. J Personal Disord. 2011;25(4):492–503. https://doi.org/10.1521/pedi.2011.25.4.492 .). The purpose of the current study was to replicate and improve on the limitations of the prior study conducted by Chang et al. to more definitively establish clinical cut-off scores for the self- and parent-report versions of the BPFS-C to detect clinical and sub-clinical borderline personality disorder (BPD) in a large sample of adolescents with BPD, other psychopathology, and no psychopathology. Methods A total of 900 adolescents ranging from ages 12–17 participated in this study. The clinical sample consisted of 622 adolescents recruited from an inpatient psychiatric facility, and the healthy control sample consisted of 278 adolescents recruited from the community. All participants completed the BPFS-C and were administered the Child Interview for DSM-IV Borderline Personality Disorder (CI-BPD). Results Using three-way ROC analyses, cut-off scores on the self- and parent-report versions of the BPFS-C distinguishing adolescents with BPD from those with subclinical BPD, and those with subclinical BPD from healthy adolescents were established. Conclusions These findings support the use of both versions of the BPFS-C to detect adolescents with BPD and sub-clinical BPD.

Abstract Background Attentional processes are important for regulating emotional states and coping with stressful events. Orientation of attention acts as filter for subsequent information processing. So far, only few eye-tracking studies have examined attentional processes during emotion perception in borderline personality disorder (BPD). In these studies, gaze behaviour was analysed during simultaneous or delayed evaluation of single stimuli. The objective of the present eye-tracking study was to investigate early and late attention allocation towards emotional facial expressions in patients with BPD and non-patients (NPs) based on a free-viewing paradigm, which allows to examine processes of self-generated attention deployment. Methods In a multiple-stimulus free-viewing task with facial expressions, i.e. happy, angry, sad, and neutral faces, presented simultaneously early and late attentional allocation was analysed in 43 patients with BPD and 43 age- and sex-matched NPs. We assessed study participants’ trait anxiety, depressive symptoms, level of alexithymia, traumatic childhood experiences, and borderline symptoms. Entry time was used to measure initial gaze orientation, whereas dwell time was calculated as an index of late attention allocation. Results As could be expected, patients with BPD reported more anxiety, depressive symptoms, experiences of childhood maltreatment, and showed higher levels of alexithymia than NPs. Patients differed from NPs in dwell time on happy facial expressions but not in dwell time on angry, sad, and neutral expressions. Contrary to our hypothesis, patients did not differ from NPs concerning entry times on angry facial expressions. Conclusions According to our results, patients with BPD show a reduced attentional preference for happy facial expression during free viewing compared to NPs. A decreased positive attentional bias at a late processing stage could be part of emotion regulation impairments and add to the vulnerability for negative affects in BPD, which represent core symptoms of the disorder. In contrast to previous eye-tracking research in BPD examining attention during evaluative processing, our dwell time data could be more indicative of self-generated, endogenously controlled attentional processes in emotion perception. The present data do not support an early vigilance for threatening social information in BPD.

Abstract Background Mindfulness skills training is a core component of Dialectical Behavior Therapy and aims to improve emotion dysregulation (ED) in people with Borderline Personality Disorder (BPD). However, the underlying mechanisms of change are not fully understood. Methods A total of 75 BPD outpatients participated in a 10-week mindfulness skills training. Multilevel models with a time-lagged approach were conducted to examine the temporal dynamics between the proposed mechanisms and ED. Decentering, nonjudgment, body awareness and attention awareness as putative mechanisms and ED as outcome were assessed on a session-by-session basis. Results Greater nonjudgment and body awareness showed within-person effects; participants who reported higher nonjudgement of inner experience and body awareness than their own personal average at a given week showed improvement in ED at the following week. Notably, decentering moderated these associations, such that increased nonjudgment and body awareness predicted improvements in ED more strongly in those participants with high decentering ability. Lastly, a bidirectional relationship between the mechanisms and ED was found; when participants were more emotionally dysregulated than their usual state, they showed less gain in the mechanisms at the following week. Conclusions Knowing how mindfulness training works is relevant to optimize treatments. Clinicians may use strategies to increase these mechanisms when the goal is to improve emotion regulation difficulties in BPD.

Abstract Background Attributions are the processes by which individuals explain the causes of positive and negative events. A maladaptive attributional style has been associated with reduced self-esteem, psychosocial functioning, and mental health. Although many psychosocial interventions target an individual’s attributional style in mental disorders, studies of its alterations in Borderline Personality Disorder (BPD) are sparse. This study aimed to investigate the attributional style in patients with BPD in comparison to healthy control individuals (HC) and its association with self-esteem and psychosocial functioning. Methods The participants (32 patients with a diagnosis of BPD, 32 HC, groups were balanced for sex, age and education) assessed their attributional style in regard to locus of control, stability and globality for positive and negative scenarios. Attributional style was compared between groups and linked to self-reports of self-esteem, loneliness and psychosocial functioning in different social domains while controlling for BPD and depressive symptom severity. Results Individuals diagnosed with BPD reported a maladaptive attributional style for both positive and negative events. This was found to be strongly related with lower self-esteem and higher levels of loneliness, but not with psychosocial dysfunctions assessed in different social domains. The severity of BPD and depressive symptoms did not fully explain the association of attributional style with self-esteem and loneliness. In contrast, correcting for acute psychopathology actually strengthened the relationship between self-esteem and maladaptive inferring causality for positive events. Conclusion The differential association of attributional style for positive and negative events with self-esteem and psychosocial functioning highlights the importance of considering the different facets of inferring causality during psychosocial interventions. Our findings suggest that the significance of cognitive alterations may change with remission of acute BPD and depressive psychopathology, depending on the valence of an event.

Abstract Background Families and significant others of people with borderline personality disorder (BPD) show increased levels of psychological distress. Family Connections®, a 12-week group intervention based on the principles of Dialectical Behavior Therapy, was designed to provide families with both information about the disorder and emotion regulation skills. It has been progressively implemented in French-speaking European countries. Methods We conducted an observational, multicenter study in France and Switzerland. In total, 149 participants of the Family Connections program were included among five centers. Burden, depression, coping, and emotion regulation were assessed before and after the intervention. Results One-way repeated measures MANOVA showed that the burden, depressive symptoms, emotion regulation and coping all changed significantly after the intervention (p

Abstract Background Individuals with borderline personality disorder (BPD) frequently alter between idealizing and devaluing other persons, which has been linked to an increased tendency to update self-relevant beliefs and impressions. We hypothesized that increased impression updating could stem from reduced attitude contextualization, i.e., a process in which impression-disconfirming information is linked to contextual cues. Methods Individuals diagnosed with BPD and controls (recruited online, with unknown diagnostic status) completed an impression formation paradigm. They first learned about the positive or negative behaviors of others in one Context A (e.g., Person 1 is helpful), followed by learning about behaviors of the opposite valence in a second Context B (Person 1 is rude). We also manipulated between participants whether the observed behaviors were directed toward the study participants (self-relevant) or, more generally, at other people (other-relevant). The contexts were marked by differently-colored backgrounds (e.g., yellow vs. blue), to avoid influences of prior knowledge or experiences. After exposure to information in both contexts, participants rated their impressions of the persons in Context A, Context B, and, crucially, a previously unknown Context C (white background). We examined whether the initial or an updated impression (re-)emerged in Context C. Results Initial impressions remained stable and dominated the ratings of controls across contexts A, B, and C for both self-relevant and other-relevant behaviors, consistent with contextualizing impression-disconfirming information. As expected, however, individuals with BPD only showed updated impression ratings in Context C for self-relevant behaviors, consistent with the assumed reduced tendency to contextualize impression-disconfirming self-relevant information. Further exploratory analyses suggest that more severe BPD symptoms predicted more pronounced impression updating in the self-relevant condition. Conclusions The findings help to illuminate the mechanisms underlying interpersonal problems in individuals with BPD. People with BPD are not just more inclined to discard positive first impressions but to re-evaluate disliked others when they behave positively, contributing to the volatility of interactions with others. Contextualization has known and modifiable antecedents, and the study may thus provide potential targets for therapeutic intervention. Future studies will need to replicate the findings with specified controls.

Abstract Background Psychiatrists often hesitate to diagnose borderline personality disorder (BPD). While individuals with BPD have reported both positive and negative experiences upon receiving their diagnosis, no study has specifically explored this issue among parents. Parents of children diagnosed with BPD can benefit from recently developed family-support interventions such as the Family Connections program. Our study aimed to explore the experiences of parents learning about their child’s BPD diagnosis and to investigate the impact of the Family Connections program on their experiences. Methods This qualitative study, conducted in France following the five-stage IPSE method, involved parents of children with BPD recruited through the Family Connections association in Versailles. We conducted semi-structured interviews and used purposive sampling for data collection until data saturation was reached. Data analysis was performed using a descriptive and structuring approach with NVivo 12 software to elucidate the structure of lived experiences. Results The study included 21 parents. The structure of the lived experiences was characterized by three central axes: (1) the long and difficult road to diagnosis; (2) communicating the BPD diagnosis to parents: a necessary step; (3) the pitfalls of receiving the diagnosis. The Family Connections program provided significant support in these areas, particularly in understanding the diagnosis, enhancing communication with their child, and reducing social isolation. Conclusion These findings highlight the challenges parents face when receiving a BPD diagnosis for their child and underscore the need for an early, clear, and detailed explanation of the diagnosis. The specific experiences of receiving the diagnosis are indicative of the broader care experience parents undergo and highlight their need and right to be informed, supported, and guided throughout their child’s treatment.

Abstract Background The physical and psychological benefits of physical activity are well-known, and physical activity has been proven to be a helpful adjunct to psychotherapeutic treatment for many symptomatic disorders, including mood and anxiety disorders. The current study explores physical inactivity levels in patients with borderline personality disorder (BPD). The first aim of this study is to describe the 12-year course of physical inactivity in patients with BPD. The second aim is to examine predictors of physical inactivity, including adversity experiences, comorbid symptomatic (formerly axis I) disorders, medical disorders, and demographic factors. Methods Two hundred and forty-five patients with BPD were interviewed seven times over 12-years of prospective follow-up as part of the McLean Study of Adult Development (MSAD). Patients were categorized as ever-recovered (i.e., patient had experienced a symptomatic and psychosocial recovery from BPD) or never-recovered. At each follow-up, patients reported physical activity levels (minutes of exercise per week) via a semi-structured interview— the Medical History and Services Utilization Interview (MHSUI). Data was collected from June 1992 to December 2018. Results Never-recovered patients with BPD were significantly more inactive than their ever-recovered counterparts (p

Abstract Background Borderline personality disorder (BPD) is often characterized by severe functional impairment, even after a decrease in symptoms. A comprehensive understanding of psychosocial functioning in BPD is necessary to tailor treatment offer, which should address relevant aspects of daily life. The aims of the present study are to (1) conduct a cross-sectional comparison of functioning of a group with BPD and a non-BPD clinical comparison group at service entry, and to (2) assess the relationship between intensity of BPD symptom domains and psychosocial functioning. Methods The sample consists of N = 65 participants with BPD and N = 57 participants from the clinical comparison group without BPD (non-BPD group). The Revised Borderline Follow-up Interview (BFI-R) was used to evaluate psychosocial functioning and the Revised Diagnostic Interview for Borderlines (DIB-R) to assess BPD symptoms. Linear, logistic, and multinomial regression models were run separately for each aspect of functioning as a function of BPD status or BPD symptom domains. Results Only 23% of participants in the BPD group fulfilled criteria for good overall psychosocial functioning, compared to 53% in the non-BPD group. Furthermore, participants in the BPD group were less likely to have completed a high number of years of education, to work consistently, to be financially independent, to be in a cohabiting relationship and have a good relationship with parents. In addition, various links were identified between BPD symptom domains and functional impairments. Conclusions Consistent with prior research, the main impairments in functioning in the BPD group are found in the educational and vocational domains. Though some domains show impairment, others, like friendships, may act as potential resources. Further investigation on the relationships with symptom domains is required.

Abstract Background Borderline personality disorder (BPD) is often complicated by comorbid major depressive episodes (MDEs), which can occur as part of major depressive disorder (MDD) or bipolar disorder (BD). Such comorbidity is related to worse outcomes in both disorders. Subsyndromal features of BPD are also common in depression. However, studies of simultaneous changes in BPD and depression severities are scarce, and their interactions are poorly understood. Aims Studying the associations between changes in BPD and depression symptoms over the course of an MDE. Methods In a 6-month naturalistic cohort study of MDE/BPD, MDE/MDD, and MDE/BD patients (N = 95), we measured change in BPD features between baseline and six months with the Borderline Personality Disorder Severity Index (BPDSI), an interviewer-rated instrument quantifying recent temporal frequency of BPD symptoms. We examined changes in BPD severity and their correlation with depression severity and other clinical measures and compared these across patient groups. Results There were significant reductions in BPD severity, both in number of positive BPD criteria (-0.35, sd 1.38, p = 0.01672) and in BPDSI scores (-4.23, SD 6.74, p

Abstract Background The current study evaluated the stepped care approach applied in AtR!Sk; a specialized outpatient clinic for adolescents with BPD features that offers a brief psychotherapeutic intervention (Cutting Down Program; CDP) to all patients, followed by a more intensive Dialectical Behavioral Therapy for Adolescents (DBT-A) for those whose symptoms persist. Methods The sample consisted of 127 patients recruited from two AtR!Sk clinics. The number of BPD criteria, psychosocial functioning, severity of overall psychopathology, number of days with non-suicidal self-injury (NSSI; past month), and the number of suicide attempts (last 3 months) were assessed at clinic entry (T0), after CDP (T1), and at 1- and 2-year follow-up (T2, T3). Based on the T1 assessment (decision criteria for DBT-A: ≥ 3 BPD criteria & ZAN-BPD ≥ 6), participants were allocated into three groups; CDP only (n = 74), CDP + DBT-A (eligible and accepted; n = 36), CDP no DBT-A (eligible, but declined; n = 17). Results CDP only showed significantly fewer BPD criteria (T2: β = 3.42, p

Abstract Background Research suggests that interpersonal dysfunction may be central to borderline personality disorder (BPD), and that the relationships of people with BPD are particularly impaired. Further, the significant others of people with BPD exhibit elevated psychological problems but little access to mental healthcare. Despite this, most BPD interventions are delivered individually and do not routinely incorporate significant others. This manuscript presents the first case series of Sage, a 12-session manualized intervention for people with borderline personality disorder (BPD) and their intimate partners with three targets: a) BPD severity, b) relationship conflict, and c) intimate partner mental health. Findings Five couples of people with BPD with frequent suicidal/self-injurious behavior or high suicidal ideation and their intimate partners received Sage. Measures of Sage targets as well as tertiary outcomes were administered at pre-, mid-, and post-intervention. Four out of five dyads completed Sage, with high intervention satisfaction ratings. Improvements were generally demonstrated in BPD severity, suicidal ideation, and suicidal behavior/self-injury. Half of dyads exhibited improvements in conflict, and additional improvements in mental health outcomes for dyad members were demonstrated. One dyad exhibited poor outcomes and speculations regarding this are offered. Conclusions Findings provide proof of concept of Sage as an intervention that can improve BPD and other mental health outcomes in those with BPD and their intimate partners. Incorporating intimate partners into BPD treatment may optimize and expedite its outcomes. However, further testing is needed. Trial registration This project was pre-registered at Clinicaltrials.gov (Identifier: [NCT04737252]).

Abstract Background Sexual risk behavior in patients diagnosed with borderline personality disorder (BPD) is supposed to be associated with traumatic experiences and dissociative symptoms. Nevertheless, scientific research thereon is scarce which might be due to the high prevalence of sexual trauma and fear of overwhelming patients with explicit sexual content. Methods We investigated a clinical sample of patients diagnosed with BPD (n = 114) and compared them to a sample of matched healthy controls (HC) (n = 114) concerning the dissociative symptoms derealization, depersonalization, and conversion in sexual situations. In a subgroup of patients with BPD (n = 41) and matched HC (n = 40) dissociative symptoms after exposure to an acoustically presented erotic narrative were assessed in the lab. Regression analyses were used to examine the associations between sexual trauma, post-traumatic stress disorder (PTSD), dissociation in sexual situations, and risky sexual behavior. Results Patients diagnosed with BPD endorsed higher dissociative symptoms in sexual situations retrospectively and in the lab compared to HC. Regression analyses revealed that depersonalization and conversion symptoms in sexual situations were explained by severity of BPD, while derealization was explained by PTSD symptomatology. Impulsive and sexual behavior with an uncommitted partner were higher in the BPD group and explained by derealization, while conversion showed an inverse association. Conclusion Our findings highlight the importance of addressing distinct dissociative symptoms in sexual situations when counselling and treating women with BPD. In the long term, this could contribute to a reduction in sexual risk behavior in patients with BPD. Trial registration This analysis is part of a larger ongoing study and was registered prior to accessing the data (Registration trial DRKS00029716).

Abstract Background The present study has descriptive and predictive aims. The descriptive aims were to determine if participants with borderline personality disorder (BPD) reported higher levels of experiential avoidance (EA) than participants with other personality disorders (OPD) as well as determine if non-recovered participants with BPD reported higher levels of EA than participants with BPD who have recovered symptomatically and psychosocially. The predictive aim was to determine if the level of EA reported by participants with BPD was predicted by the severity of aspects of childhood or adult adversity and/or aspects of temperament. Methods The Overall Anxiety Severity and Impairment Scale (OASIS) was administered to 248 participants at 24-year follow-up in the McLean Study of Adult Development (MSAD). Adversity and temperament were assessed during index admission using interviews (Revised Childhood Experience Questionnaire [CEQ-R], Adult History Interview [AHI], and the NEO-FFI self-report measure). Results Participants with BPD reported significantly higher levels of EA than those with OPD. Within the BPD group, non-recovered participants reported significantly higher levels of EA than recovered participants. Severity of childhood sexual abuse and lower levels of extraversion were found to be significant multivariate predictors of levels of EA in those with BPD. Conclusions Taken together, these results suggest that EA is a serious problem for participants with BPD, particularly those who have not recovered. They also suggest that both the severity of childhood adversity and a temperament marked by lower levels of extroversion are significantly related to levels of EA reported by participants with BPD.

Abstract Background Maladaptive behaviors and interpersonal difficulties in patients with borderline personality disorder (BPD) seem connected to biased facial emotion processing. This bias is often accompanied by heightened amygdala activity in patients with BPD as compared to healthy controls. However, functional magnetic resonance imaging (fMRI) studies exploring differences between patients and healthy controls in facial emotion processing have produced divergent results. The current study explored fMRI and heart rate variability (HRV) correlates of negative facial emotion processing in patients with BPD and healthy controls. Methods The study included 30 patients with BPD (29 females; age: M = 24.22, SD = 5.22) and 30 healthy controls (29 females; M = 24.66, SD = 5.28). All participants underwent the “faces” task, an emotional face perception task, in an fMRI session simultaneously with ECG. In this task, participants are presented with emotional expressions of disgust, sadness, and fear (as a negative condition) and with the same pictures in a scrambled version (as a neutral condition). Results We found no differences in brain activity between patients with BPD and healthy controls when processing negative facial expressions as compared to neutral condition. We observed activation in large-scale brain areas in both groups when presented with negative facial expressions as compared to neutral condition. Patients with BPD displayed lower HRV than healthy controls in both conditions. However, there were no significant associations between HRV and amygdala activity and BPD symptoms. Conclusion The results of this study indicate no abnormal brain activity during emotional facial processing in patients with BPD. This result contrasts with previous studies and more studies are needed to clarify the relationship between facial emotion processing and brain activity in patients with BPD. Possible reasons for the absence of brain activity differences are discussed in the study. Consistent with previous findings, patients showed lower HRV than healthy controls. However, HRV was not associated with amygdala activity and BPD symptoms.

Abstract Background Genome-wide association studies have reported a genetic overlap between borderline personality disorder (BPD) and schizophrenia (SCZ). Epidemiologically, the direction and causality of the association between thyroid function and risk of BPD and SCZ are unclear. We aim to test whether genetically predicted variations in TSH and FT4 levels or hypothyroidism are associated with the risk of BPD and SCZ. Methods We employed Mendelian Randomisation (MR) analyses using genetic instruments associated with TSH and FT4 levels as well as hypothyroidism to examine the effects of genetically predicted thyroid function on BPD and SCZ risk. Bidirectional MR analyses were employed to investigate a potential reverse causal association. Results Genetically predicted higher FT4 was not associated with the risk of BPD (OR: 1.18; P = 0.60, IVW) or the risk of SCZ (OR: 0.93; P = 0.19, IVW). Genetically predicted higher TSH was not associated with the risk of BPD (OR: 1.11; P = 0.51, IVW) or SCZ (OR: 0.98, P = 0.55, IVW). Genetically predicted hypothyroidism was not associated with BPD or SCZ. We found no evidence for a reverse causal effect between BPD or SCZ on thyroid function. Conclusions We report evidence for a null association between genetically predicted FT4, TSH or hypothyroidism with BPD or SCZ risk. There was no evidence for reverse causality.

Abstract Background Psychiatric medications are not efficacious for treating borderline personality disorder (BPD), yet many patients with BPD are prescribed multiple psychiatric medications. This study aimed to (1) characterize psychiatric medication prescribing practices in adolescents with BPD and (2) assess whether demographic features are associated with prescribing practices. Method This sample was N = 2950 pediatric patients with BPD (ages 10–19) across the U.S. Data came from the NeuroBlu database, which includes data from 30 U.S. healthcare systems and hundreds of hospitals. Poisson regressions and chi-squared tests determined whether gender, race, and ethnicity were associated with (1) number of unique psychiatric medications prescribed and (2) number of unique medication classes prescribed. Results Roughly two-thirds (64.85%) of youth were prescribed any medications. Of these youth, 79.40% were prescribed ≥ 2 unique medications and 72.66% were prescribed ≥ 2 unique medications classes. The mean number of unique medications was 3.50 (SD = 2.50). The mean number of unique medication classes was 2.35 (SD = 1.15). The most commonly prescribed medication classes were antidepressants and antipsychotics, which were often prescribed in combination. Poisson regressions showed that boys were prescribed more unique medications (M = 3.67) than girls (M = 3.47). Non-Latinx youth were prescribed significantly more unique medications (M = 44.12) than Latinx youth (M = 3.60, p = .01). Conclusions Results characterize psychiatric medication prescribing practices in youth with BPD. Prescribing practices vary by demographics, such that boys and non-Latinx youth are prescribed more medications than girls and Latinx youth, respectively. These demographic differences suggest that prescribers may treat BPD differently based on patient demographic characteristics.

Abstract Background Dissociation is a feature of Borderline Personality Disorder (BPD), but rarely a focus for research, particularly in the perinatal literature. BPD partly has its aetiology in childhood and is characterised by emotional changes and difficulty with self-coherence that impacts on the processes of caregiving. Methods A scoping review was conducted to synthesise current perspectives on the effect of dissociation in caregivers with BPD, particularly regarding the impact of caregiver dissociation on the interactional quality of relationship within parent–child dyads. Studies were included if they explicitly mentioned dissociation in the target population, or if dissociation was implied. A thematic analysis was conducted. Results 20 studies were included; 10 experimental or quasi-experimental; 2 presenting case material; and 8 non-systematic review articles. 4 studies used the Dissociative Experiences Scale (DES) to measure dissociation, while 2 studies included a ‘dissociative behaviour’ subscale as part of an observational measure. The remaining studies did not measure dissociation but referenced directly or indirectly a concept of dissociation. Conclusions Findings suggested there was some evidence that dissociation plays a unique role in BPD caregivers’ interactions with their offspring, however any findings should be interpreted with caution as the concept has been poorly operationalised and defined.

Background: Individuals with borderline personality disorder (BPD) frequently alter between idealizing and devaluing other persons, which has been linked to an increased tendency to update self-relevant beliefs and impressions. We hypothesized that increased impression updating could stem from reduced attitude contextualization, i.e., a process in which impression-disconfirming information is linked to contextual cues., Methods: Individuals diagnosed with BPD and controls (recruited online, with unknown diagnostic status) completed an impression formation paradigm. They first learned about the positive or negative behaviors of others in one Context A (e.g., Person 1 is helpful), followed by learning about behaviors of the opposite valence in a second Context B (Person 1 is rude). We also manipulated between participants whether the observed behaviors were directed toward the study participants (self-relevant) or, more generally, at other people (other-relevant). The contexts were marked by differently-colored backgrounds (e.g., yellow vs. blue), to avoid influences of prior knowledge or experiences. After exposure to information in both contexts, participants rated their impressions of the persons in Context A, Context B, and, crucially, a previously unknown Context C (white background). We examined whether the initial or an updated impression (re-)emerged in Context C., Results: Initial impressions remained stable and dominated the ratings of controls across contexts A, B, and C for both self-relevant and other-relevant behaviors, consistent with contextualizing impression-disconfirming information. As expected, however, individuals with BPD only showed updated impression ratings in Context C for self-relevant behaviors, consistent with the assumed reduced tendency to contextualize impression-disconfirming self-relevant information. Further exploratory analyses suggest that more severe BPD symptoms predicted more pronounced impression updating in the self-relevant condition., Conclusions: The findings help to illuminate the mechanisms underlying interpersonal problems in individuals with BPD. People with BPD are not just more inclined to discard positive first impressions but to re-evaluate disliked others when they behave positively, contributing to the volatility of interactions with others. Contextualization has known and modifiable antecedents, and the study may thus provide potential targets for therapeutic intervention. Future studies will need to replicate the findings with specified controls., (© 2024. The Author(s).)

Abstract Background Though Dialectical Behavior Therapy (DBT) and other treatment models for individuals with Borderline Personality Disorder (BPD) have shown to be efficient in inpatient and outpatient settings, there is a general shortage of these treatments. In Germany, most resources are spent on inpatient treatments and unspecific crisis interventions, while it is difficult to implement the necessary team structures in an outpatient setting. This study is testing an alternative approach focussing on outpatient treatment: Integrated Care Borderline (ICB) provides DBT for persons with severe BPD within the structures of an Assertive Community Treatment (ACT). ICB is team-based, integrating psychiatric and social support as well as crisis interventions into a DBT-strategy. Methods ICB was compared to TAU in a prospective, randomized controlled trial. This study is part of RECOVER, a comprehensive stepped care approach in Germany, which enrolled a total of 891 participants. 146 persons were diagnosed with BPD as main diagnosis. Of these, 100 were allocated to the highest level of severe mental illness (SMI) and randomly assigned to either ICB (n = 50) or TAU (n = 50). Data were collected at baseline and 12 months later. The main outcomes were psychosocial functioning (GAF), severity of BPD (BSL-23) and other mental symptoms (BSI, PHQ-9, GAD-7, self-harm), employment status (VILI), as well as hospital days and associated costs. Results Data show a significant increase of psychosocial functioning and a significant decrease of BPD and other psychiatric symptoms in both groups (r = .28 – .64), without any significant differences between the groups. The proportion of self-harming persons decreased in both groups without statistical significance. Patients were significantly more likely to be employed after a year of treatment in ICB (p = .001), but not in the TAU group (p = .454). Analyses showed a significant difference between the groups (p = .032). Moreover, psychiatric hospital days were significantly reduced in ICB (-89%, p

Abstract Background Subjective emptiness is a transdiagnostic clinical dimension related to suicide, distress, and other maladaptive outcomes. Although it is typically conceptualized as a symptom of borderline personality disorder, it has a different pattern of correlates than other symptoms of that phenotype and is present in individuals with other diagnoses. The goals of this study were to replicate and extend previous findings regarding the place of emptiness as a standalone construct within a relatively comprehensive array of personality features. Method A sample of 992 anonymous participants (M = 45.37 years, SD = 16.53) who were census-matched to the US population completed an online survey including measures of emptiness, normal-range and maladaptive trait domains and aspects, as well as interpersonal values and problems. Results Overall, the pattern of correlations suggests that people who report feelings of emptiness tend to have negative emotions, be socially withdrawn, and are low in energy. Conclusion These findings highlight the relevance of subjective emptiness beyond the borderline category, replicate previous findings regarding the personality and psychopathology correlates of subjective emptiness, and portray a particular profile of personality that represents a risk factor for the experience of subjective emptiness.

Abstract Background Frequently presenting with symptoms of mood or anxiety disorders, substance abuse or borderline personality disorder, suicidal and self-harming adolescents often are prescribed psychotropic medication. Though such treatment may be warranted, recurrent suicidal and self-harming behaviour is often linked to emotion dysregulation where pharmacological treatment has weak empirical support. There is a need for more clinical research into the frequency, type and rationale for pharmacological treatment in this group. In this secondary analysis of three randomized clinical trials of dialectical behaviour therapy for adolescents, we report on psychotropic medication use in the respective samples at the time of recruitment, compare use of psychotropic medication across trials and describe sample characteristics that may be associated with possible differences in psychotropic medication. Findings Trials were conducted in Norway, the US and Spain (labelled the Oslo, US and Barcelona samples). At baseline, 86% of the Barcelona sample, 67% of the US sample and 12% of the Oslo sample were taking at least one psychotropic medication with antidepressants as the most frequent, followed by antipsychotics (72%, 22% and 1.3% respectively) and mood stabilizers (14.2%, 16.2% and 0%). In the Oslo sample there was a significant association between receiving a diagnosis of major depression and the likelihood of receiving antidepressants, but no such association was found in the Barcelona and US samples. The overall 7–8 times higher proportion of participants in the US and Barcelona samples treated with psychotropic medication could only partially be explained by differences between the samples in diagnostic profiles, symptom severity or level of dysfunction. Conclusions Highly prevalent in use among suicidal and self-harming adolescents with borderline features, psychotropic medication was still very unevenly prescribed across trials, differences not explained by differences in sample characteristics suggesting that current treatment practices are not fully empirically supported. We call for continued medical education and increased availability of evidence-based psychosocial interventions.

Abstract Background Adaptive strategies of emotion regulation are important for adolescents, as maladaptive strategies of such can manifest as psychopathology that is sometimes severe. Individual biological characteristics and influences from peers have been shown to have an effect on the development of emotion regulation strategies in adolescents. Maternal factors, however, have received less attention in this age group regarding how they might predict emotion regulation in adolescents. Given that prior work has demonstrated that certain maternal factors, like emotion regulation and personality, play a crucial role in the development of emotion regulation strategies in early childhood, we sought to examine these associations in adolescents in our current study. Methods Adolescents and their mothers (n = 123) both self-reported data on their own emotion regulation, and mothers also self-reported data on their own personality dysfunction. We operationalized maternal and adolescent emotion regulation as emotion suppression, a maladaptive emotion regulation strategy that is commonly used by adolescents. Results Our data demonstrated that both maternal emotion suppression and interpersonal personality dysfunction were positively associated with adolescent emotion suppression. No associations among maternal intrapersonal personality functioning and adolescent emotion suppression were detected. Conclusions Maternal personality dysfunction and emotion suppression both independently predicted adolescent emotion suppression use. These results support the idea that maternal characteristics play a role in shaping emotion regulation in adolescence.