Related Experiment Video
Updated: Aug 13, 2026

Use of a Psychophysiological Script-driven Imagery Experiment to Study Trauma-related Dissociation in Borderline Personality Disorder
Published on: March 8, 2018
Persistent somatic symptom severity in patients with borderline personality disorder: Trauma-related symptoms as
Paul Hüsing1, Bernd Löwe1, Sarah V Biedermann2
1Department of Psychosomatic Medicine and Psychotherapy, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20251 Hamburg, Germany.
Background:
Patients with borderline personality disorder (BPD) frequently report high levels of somatic symptoms. BPD and persistent somatic symptoms (PSS) share risk factors such as depression, trauma history and posttraumatic stress disorder (PTSD), as well as dissociation. This study examined predictors of PSS improvement in BPD patients during inpatient dialectical behavior therapy (DBT).
Method:
Data from BPD inpatients (79.5 % female, mean age = 29.54 years, SD = 9.24) were analyzed at baseline (N = 180), four weeks (n = 117), and discharge (n = 92). Baseline PSS severity (PHQ-15) was predicted using depressive symptoms (PHQ-9), BPD symptoms (BSL-23), childhood trauma (CTQ), PTSD symptoms (PCL-5) and dissociation (FDS-20) via multiple linear regression. Symptom changes were analyzed using repeated measures ANOVA. Hierarchical Linear Modeling (HLM) was conducted to examine the relationship between PTSD, depression, dissociation, and borderline symptoms with PSS severity across time.
Results:
Baseline PSS severity was significantly associated with depressive symptoms (t = 5.613, p < .001), PTSD symptoms (t = 4.02, p < .001), and dissociation (t = 3.406, p < .001; R2 = 0.57). Significant improvements during treatment were observed in PSS (η2 = 0.35), depression (η2 = 0.55), dissociation (η2 = 0.27), BPD symptoms (η2 = 0.42), and PTSD (d = 0.96). Only changes in PTSD symptoms were associated with changes in PSS severity (F (1, 152.719) = 4.356, p = .039).
Discussion:
While multiple factors contribute to baseline PSS severity in BPD patients, improvements in PTSD symptoms appear to play a key role in the reduction of somatic complaints during inpatient DBT. This highlights the importance of addressing PTSD-related distress in treatment to achieve broader symptom relief. Future research should explore the mechanisms underlying this relationship and assess whether targeted interventions for PTSD within DBT could enhance outcomes for patients experiencing PSS.
Related Concept Videos
Borderline Personality Disorder
Genetic and Environmental Contributions
Borderline Personality...
Dissociative Identity Disorder
Personality Disorders: Paranoid and Schizoid
Paranoid Personality Disorder
Paranoid personality disorder is...
Post-traumatic Stress Disorder
Symptoms and Behavioral Manifestations
A spectrum of distressing symptoms characterizes PTSD. Recurrent flashbacks, where individuals involuntarily relive traumatic events, are a...
Personality Disorders: Schizotypal and Histrionic
Schizotypal Personality Disorder: Eccentric Behavior and Social Withdrawal
Schizotypal personality disorder is marked by odd or eccentric...
Modeling in Therapy
Participant Modeling
Participant modeling involves therapists demonstrating calm and effective behaviors in situations...