The effects of borderline personality disorder (BPD) trait on emotion dysregulation and the severity of BPD symptoms in Japanese nonclinical adolescents

[Speaker] Miyamae, Mitsuhiro:1
[Co-author] Fujisato, Hiroko:2, Yamada, Keisuke:3, Isato, Ayako:4, Okubo, Chisa:5, Terashima, Hitomi:6
1:National Center for Cognitive Behavior Therapy and Research, National Center of Neurology and Psychiatry (Japan), 2:Department of Child-Related Studies, Kanto Junior College (Japan), 3:Faculty of Industrial Researches and Social Services, Tsukuba International University (Japan), 4:Faculty of Psychology, RlSSHO University (Japan), 5:Academic Service Office, University of Tsukuba (Japan), 6:Faculty of Humane and Social Sciences, Wayo Women's University (Japan)

Emotion dysregulation is one of the core features of borderline personality disorder (BPD). Some effective treatments for BPD focus on emotion regulation (e.g., systems training for emotional predictability and problem solving). It is of value to investigate the mechanism of emotion dysregulation in BPD. The present study examined the effects of BPD trait on emotion dysregulation and BPD symptoms in Japanese nonclinical adolescents. Undergraduate students (n=539) completed a questionnaire. Emotion regulation was assessed by difficulty in emotion regulation scale (DERS) and emotion regulation questionnaire (ERQ). BPD trait and the severity of BPD symptoms were measured by the items on BPD in structured clinical interview for DSM-IV axis II personality disorders (SCID-II) and quick evaluation of severity over time (QuEST), respectively. Results suggest that BPD trait effects directly on the severity of BPD symptoms as well as indirectly via emotion dysregulation. The findings highlight the importance of emotion regulation in BPD.
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