Attributional style in Borderline personality disorder is associated with self-esteem and loneliness.

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.

Dissociative Experiences, Borderline Personality Disorder Features, and Childhood Trauma: Generating Hypotheses from Data-Driven Network Analysis in an International Sample.

Dissociation is a multifaceted phenomenon that occurs in various mental disorders, including borderline personality disorder (BPD), but also in non-clinical populations. Severity of childhood trauma (abuse, neglect) plays an important role in the development of dissociation and BPD. However, the complex interplay of different dissociative symptoms, BPD features, and self-reported childhood trauma experiences is not yet fully understood. Graph-theoretical network analysis can help to better understand such multivariate interrelations. Objective: This study aimed to investigate associations between self-reported dissociation, BPD features, and childhood trauma experiences using a graph-theoretical approach. Data was collected online via international mental health platforms and research sites. N = 921 individuals (77.4% female) were included; 40% reported pathological levels of dissociation. Variables were assessed with established psychometric scales (Dissociative Experiences Scale; Personality Assessment Inventory Borderline Features Scale; Childhood Trauma Questionnaire) and analyzed within a partial correlation network. Positive bivariate correlations between all variables were found. When accounting for their mutual influence on each other, dissociation was predominantly connected to BPD features with effect sizes between rp = .028 and rp = .126, while still showing a slight unique relationship with physical neglect (rp = .044). Findings suggest close associations between dissociative experiences and BPD features. While childhood trauma plays an important role in the development of dissociation and BPD, its recall may not fully explain their current co-occurrence. Prospective studies are needed to shed more light on causal pathways to better understand which factors contribute to dissociation and its link to BPD (features).

Evidence for a shared genetic contribution to loneliness and borderline personality disorder.

Loneliness, influenced by genetic and environmental factors such as childhood maltreatment, is one aspect of interpersonal dysfunction in Borderline Personality Disorder (BPD). Numerous studies link loneliness and BPD and twin studies indicate a genetic contribution to this association. The aim of our study was to investigate whether genetic predisposition for loneliness and BPD risk overlap and whether genetic risk for loneliness contributes to higher loneliness reported by BPD patients, using genome-wide genotype data. We assessed the genetic correlation of genome-wide association studies (GWAS) of loneliness and BPD using linkage disequilibrium score regression and tested whether a polygenic score for loneliness (loneliness-PGS) was associated with case-control status in two independent genotyped samples of BPD patients and healthy controls (HC; Witt2017-sample: 998 BPD, 1545 HC; KFO-sample: 187 BPD, 261 HC). In the KFO-sample, we examined associations of loneliness-PGS with reported loneliness, and whether the loneliness-PGS influenced the association between childhood maltreatment and loneliness. We found a genetic correlation between the GWAS of loneliness and BPD in the Witt2017-sample (rg = 0.23, p = 0.015), a positive association of loneliness-PGS with BPD case-control status (Witt2017-sample: NkR² = 2.3%, p = 2.7*10-12; KFO-sample: NkR² = 6.6%, p = 4.4*10-6), and a positive association between loneliness-PGS and loneliness across patient and control groups in the KFO-sample (ß = 0.186, p = 0.002). The loneliness-PGS did not moderate the association between childhood maltreatment and loneliness in BPD. Our study is the first to use genome-wide genotype data to show that the genetic factors underlying variation in loneliness in the general population and the risk for BPD overlap. The loneliness-PGS was associated with reported loneliness. Further research is needed to investigate which genetic mechanisms and pathways are involved in this association and whether a genetic predisposition for loneliness contributes to BPD risk.