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Self-injurious behavior and risk-taking behaviors are associated with adolescent borderline personality disorder (BPD). Developmental trajectories of self-injurious and risk-taking behavior in predicting BPD have not been fully understood. The aim of the present study was to examine self-injurious and risk-taking behavior development and their prospective influence on BPD symptoms in adolescence. Data (n = 506; 62.06 % females, 14.53 years) from the German Saving and Empowering Young Lives in Europe cohort were analyzed. Self-injurious and risk-taking behaviors were assessed at baseline and one-year follow-up. BPD symptoms were assessed at two-year follow-up. In fully adjusted stepwise binominal regression analyses, recent onset, termination and maintenance of risky alcohol use and self-injurious behavior remained as significant predictors of BPD. Highest ORs were found for alcohol termination and maintenance of self-injurious behavior. Other facets of risk-taking behavior were not associated with increased ORs of BPD symptoms at two-year follow-up. These findings highlight the importance of self-injurious behavior and specific facets of risk-taking behavior in the development of adolescent BPD. Clinicians should focus on efforts in preventing adolescents from risk-taking and self-injurious behavior, since engaging in young age and therefore in potentially longer periods of these behaviors is associated with the highest risk of BPD., (Copyright © 2019 Elsevier B.V. All rights reserved.)

Vagally mediated heart rate variability (vmHRV) is reduced in borderline personality disorder (BPD). Non-suicidal self-injury (NSSI) is associated with comorbid psychopathology, in particular BPD. We aimed to examine differences in cardiac function (vmHRV and heart rate [HR]) comparing adolescents (12-17 years) engaging in NSSI (n=30) and healthy controls (n=30). Further, we aimed to determine clinical concomitants of cardiac function in patients with NSSI. Analyses showed no significant group differences on cardiac function. Controlling for a host of confounding variables resting state HR and vmHRV in adolescents with NSSI were significantly correlated with BPD symptoms and the current level of functioning., (Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.)

Previous studies on borderline personality disorder (BPD) development suggest a transgenerational transmission of parent-child relationship quality, which may also be influenced by parents' mental health status. The aim of this study was twofold. First, we aimed to investigate the transgenerational effect of parental bonding experiences on the development of BPD in their offspring. Second, we examined the association between parents' mental health status and BPD in offspring. Ninety-one female adolescent psychiatric inpatients along with 87 mothers and 59 fathers were enrolled in the study. Adolescent BPD was assessed with the Structured Clinical Interview for DSM-IV-II, parental bonding with the Parental Bonding Instrument, and parents´ psychiatric symptoms with the Patient Health Questionnaire. We found that low parental care produced a transgenerational effect from mother to BPD in offspring. Further, significant associations were found between paternal psychiatric symptoms and adolescent BPD. High paternal stress levels mediated the association between maternal affect reported by fathers and BPD in daughters. There is evidence of a transgenerational effect of parental bonding specifically for female adolescents with BPD, compared with other clinical control subjects. Our findings highlight the importance of including both parents in future research and in early clinical treatment in adolescents with BPD., (Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.)

In Germany, high prevalence rates for problematic alcohol use and problematic Internet use in adolescents were reported. The objective of the present study was to identify psychopathological factors associated with these two behavior patterns. To our knowledge, this is the first investigation assessing psychopathological factors for both problematic alcohol and problematic Internet use in the same sample of adolescents. We surveyed a sample of 1444 adolescents in Germany regarding problematic alcohol use, problematic Internet use, psychopathology and psychological well-being. We conducted binary logistic regression analyses. 5.6% of the sample showed problematic alcohol use, 4.8% problematic Internet use, and 0.8% both problematic alcohol and problematic Internet use. Problematic alcohol use was higher in adolescents with problematic Internet use compared to those without problematic Internet use. Conduct problems and depressive symptoms were statistically significant associated with both problematic alcohol and problematic Internet use. Prosocial behavior was related to problematic Internet use. Male gender and less peer problems were associated with problematic alcohol use. For the first time associations between adolescent problematic alcohol and problematic Internet use due to common psychopathological factors were identified. However, in addition to shared factors, we found also specific psychopathological correlates associated with these two behavior patterns., (Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.)

At risk status for psychosis has been robustly associated with decreased health-related quality of life (HRQoL) among adults. However, this relationship has not been examined in adolescents with ultra-high risk (UHR) for psychosis in comparison to healthy controls. Twenty-seven subjects with UHR and thirty healthy controls (14-18 years of age) were recruited in a multiphase screening and accessed with a HRQoL scale of KIDSCREEN-27. Comparisons indicated that subjects with UHR had poorer mean scores at a statistically significant level in the following scales: physical well-being, psychological well-being and school environment. In a logistic regression analysis, lower scores in the scale school environment explained at risk status for psychosis. Adolescents with UHR show significantly poorer HRQoL scores than healthy peers, identified predominantly by the evaluation of the school environment. These results might be interpreted as a self-perception of early mental and social functioning impairments, which seem to be recognized initially based on school demands. Considering these findings, institutes of education should be a good starting point to promote the awareness of the psychosis-risk state., (Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.)

Volumetric alterations in limbic structures have been detected in adults, but not in adolescents with borderline personality disorder (BPD). We examined adolescents in the early stages of BPD to provide a unique opportunity to investigate which parts of the brain are initially affected by the disorder before confounding factors such as long-term medication or chronicity can mask them. A group of 60 right-handed female adolescents between 14 and 18 years of age (20 patients with BPD, 20 clinical controls, and 20 healthy controls) underwent magnetic resonance imaging (MRI). Focus was on the examination of hippocampal and amygdalar volume differences. Furthermore, a cortical thickness analysis was conducted. FreeSurfer software detected significant group differences in the right and left hippocampus and in the right amygdala. Additionally, significant volume reductions in frontal (right middle frontal gyrus, orbital part of the inferior frontal gyrus bilaterally), and parietal regions (superior parietal gyrus bilaterally) were found in adolescents with BPD compared with controls. No group differences in cortical thickness were revealed., (Copyright © 2014 Elsevier Ireland Ltd. All rights reserved.)

Perceptual closure is the ability of the brain to recognize a complete object based on fragmentary information and has been known to be impaired in schizophrenia. Here, the neural integrity of perceptual closure in schizophrenia with different disease onsets was evaluated by examining the generation of event-related potential (ERP) components (P₁₀₀, N₁₈₀, and N(cl)). ERPs were recorded from 40 patients (19 early-onset schizophrenia, "EOS" and 21 adult-onset schizophrenia, "AOS") and 40 age-matched healthy volunteers. Brain electric source analysis (BESA) was applied to localize the cerebral generators underlying perceptual closure. Patients showed an impaired generation of N(cl) and P₁₀₀ components. P₁₀₀ and N(cl) amplitudes were significantly reduced in both AOS and EOS (P<0.01). Moreover, N180 and N(cl) amplitudes were significantly increased with age in controls and patients (P<0.01). In the case of the N(cl), there was also a significant interaction (P<0.001) between age and group, indicating a greater age-dependent N(cl) increase in controls compared to patients. Visual information processing during perceptual closure is impaired in schizophrenia, regardless of age at disease onset. The combined influence of age and group on the amplitude of the N(cl) might support the idea of neurodevelopmental deficits in schizophrenia., (Copyright © 2013 Elsevier Ireland Ltd. All rights reserved.)

This study aimed to investigate a specific relationship between nonsuicidal self-injury (NSSI) and a variety of adverse childhood experiences (ACEs) over and above childhood abuse and their impact on frequency, severity, and functions of NSSI. A sample of 125 inpatients (aged 13 to 26) was consecutively recruited within a psychiatric university hospital. Frequency, methods and functions of NSSI were assessed by the Functional Assessment of Self-Mutilation (FASM), ACEs were assessed by the Childhood Experiences of Care and Abuse Questionnaire (CECA.Q). The 12 month prevalence of NSSI in this representative, clinical sample was 60.0%. Engagement in NSSI was significantly related to ACEs with highest associations for maternal antipathy and neglect. Whilst ACEs were not associated with frequency or severity of NSSI, some ACEs were significantly related to the automatic functions of NSSI (e.g., affect regulation, anti-dissociative function or self-punishment) as well as to a peer identification function. NSSI represents a frequent phenomenon among young clinical populations and seems to be specifically related to ACEs with maternal antipathy or neglect commonly featured over and above experiences of abuse. Since ACEs also influence the functions of NSSI such factors need to be examined as part of clinical care planning., (Copyright © 2012 Elsevier Ireland Ltd. All rights reserved.)

The link between focal motor system activation and reafferent sensory feedback is thought to be crucial for the perception that a movement is actively performed. In this article, we examine how schizophrenia affects the relationship between motor and somatosensory system activation. Movement-related potential source analysis allowed us to separate and compare motor activation deficits and reafferent feedback processing. We analyzed lateralized movement-related potentials during choice reaction movements in 16 subjects with schizophrenia/schizoaffective disorder. These subjects had partial remissions with predominantly negative symptoms and were compared to an age-matched healthy control group. In the schizophrenia/schizoaffective group, dipole source analysis indicated a significantly reduced lateralized sensorimotor activation immediately preceding movement execution. In contrast, activation by reafferent feedback was relatively unimpaired. Subjects with schizophrenia/schizoaffective disorder lacked a focal motor and reafferent sensory processing correlation, which can be identified through a significantly different regression slope from healthy controls. Reduced action-related motor system activation in subjects with schizophrenia/schizoaffective disorder was associated with preserved activation by reafferent sensory feedback. Most importantly, motor-sensory tuning, i.e. a specific enhancement of sensory information necessary to monitor movements, could not be found in subjects with schizophrenia/schizoaffective disorder. Our data provide further evidence for disturbed motor-sensory interactions in schizophrenia., (Copyright © 2012 Elsevier Ireland Ltd. All rights reserved.)