Itnessing of traumatic events. Working with the PDS scale,sufferers with BPD reported PubMed ID: experiencing a history of “accident or fire,” reported “nonsexual (-)-Indolactam V assault (unknown assailant),” reported “nonsexual assault (identified assailant),” reported “sexual assault (unknown assailant),” and reported “sexual assault (recognized assailant).” No sexual assault by a identified assailant was reported inside the control group. To assess which traumatic events have predictive value for impairments in social cognition in BPD patients,a forward stepwise linear regression with the MASC total score as dependent variable and reported trauma as independent variable was performed. Sexual assault from a recognized assailant ( t p) was predictive of impairments around the MASC (R F). Also,the ANOVA model with all the threegroup comparison (BPD with and without having reported sexual assault from a known assailant and controls) revealed a significant influence of group (F p ). Post hoc ttests (Bonferroni corrected) indicated considerably decrease MASC total scores for patients with sexual assault in comparison to patients without the need of sexual assault (p) and compared to controls . Seventeen sufferers with BPD with comorbid PTSD and sufferers with BPD with out comorbid PTSD reported “sexual assault (recognized assailant),” indicating an independent danger factor along with comorbid PTSD for impaired social cognition. Additionally,to assure that variations in social cognitive overall performance inside the BPD groups with and with out “sexual assault (known assailant)” were not solely attributable to higher BPD symptom severity within the group with a history of abuse,BSL scores had been compared among the two groups. An ANOVA revealed no substantial distinction between the two groups for the BSL total score: patients without having “sexual assault (recognized assailant)”: imply SD , patients with “sexual assault (known assailant)”: imply SD , F , p Frontiers in Behavioral Neurosciencewww.frontiersin.orgDecember Volume Report Prei er et al.Social cognition in BPDet al. The results of impaired social cognition measured by the MASC,particularly inside the recognition of intentions,are in line using a earlier study showing that mental state reasoning capacities are compromised in BPD (Fonagy and Bateman. In summary,our results support the notion that higherorder integration of social info within a restricted time frame is impaired in patients with BPD. Further,we extended these findings of impaired emotion recognition to thoughts and intentions,which appear to be even more impaired in BPD. The present findings of impaired social cognition can explain a number of clinical symptoms of BPD. Deficits in correctly identifying the emotions,thoughts,and intentions occurring in social scenarios could result in worry of abandonment,alternating amongst extremes of idealization and devaluation of other persons,and subsequent suicidal gestures or threats. Further studies are required to assess the cognitive and behavioral impacts of impaired social cognition in BPD. In the present study our preliminary analyses identified three aspects contributing to impaired social cognition in BPD: intrusive symptoms,comorbid PTSD,and sexual assault by a recognized assailant. Intrusiveness as measured by the BSL in the patient group negatively predicted outcomes on the MASC,especially for recognition of thoughts. Also,comorbid PTSD was associated with impairment in social cognition in BPD,specifically for recognition of thoughts and intentions. Intrusions are core symptoms of PTSD; th.