Association between the behavioral response during social exclusion and recalled childhood maltreatment

Social exclusion is a critical event for mental health. Patients with interpersonal dysfunction, e.g., with borderline personality disorder (BPD) or persistent depressive disorder (PDD), are particularly vulnerable, often based on their experiences of early adversity in life. The etiological pathways from childhood maltreatment (CM) to current behavior during social exclusion are still underexplored. This cross-diagnostic study investigated the relationship between self-reported CM and behavioral reaction to social exclusion in an experimental paradigm (Cyberball). Data from 140 subjects including patients with BPD and PDD as well as healthy controls were analyzed. The effect of CM (Childhood Trauma Questionnaire, CTQ) on behavior to social exclusion during Cyberball (ball tossing behavior) was analyzed including rejection sensitivity (RS) as a mediator. In the whole sample, the CTQ score (B = -.004, p