title: PTSD, emotion dysregulation, and dissociative symptoms in a highly traumatized sample.
abstract: Exposure to multiple traumas has been shown to result in many negative mental health outcomes, including posttraumatic stress disorder (PTSD). Dissociation, which involves disruptions in memory, identity, and perceptions, may be a component of PTSD, particularly among individuals who have experienced childhood trauma. Emotion regulation difficulties are also strongly associated with childhood trauma and emotion dysregulation may be a particularly important factor to consider in the development and maintenance of dissociative symptoms. The goal of the present study was to determine whether emotion dysregulation mediated the relationship between PTSD symptoms and dissociation in a sample of 154 (80% female, 97% African-American) adults recruited from a public, urban hospital. PTSD was measured using the Clinician Administered PTSD Scale, emotion dysregulation was measured using the Difficulties in Emotion Regulation Scale, and dissociation was measured using the Multiscale Dissociation Inventory. A linear regression analysis showed that both PTSD and emotion dysregulation were statistically significant predictors of dissociation even after controlling for trauma exposure. Alexithymia and an inability to use emotion regulation strategies in particular were predictive of dissociation above and beyond other predictor variables. Using bootstrapping techniques, we found that overall emotion dyregulation partially mediated the effect of PTSD symptoms on dissociative symptoms. Our results suggest that emotion dysregulation may be important in understanding the relation between PTSD and dissociative symptoms. Treatment approaches may consider a focus on training in emotional understanding and the development of adaptive regulation strategies as a way to address dissociative symptoms in PTSD patients.
authors.affiliation: Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, United States. Electronic address: adpower@emory.edu.
authors.forename: Abigail
authors.initials: A
authors.lastname: Powers
authors.affiliation: Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, United States.
authors.forename: Dorthie
authors.initials: D
authors.lastname: Cross
authors.affiliation: Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, United States.
authors.forename: Negar
authors.initials: N
authors.lastname: Fani
authors.affiliation: Atlanta VA Medical Center, United States; Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, United States.
authors.forename: Bekh
authors.initials: B
authors.lastname: Bradley
mesh_terms: D000293:Adolescent; D000328:Adult; D000342:Affective Symptoms / Q000150:complications* / Q000523:psychology; D004644:Emotions; D005260:Female; D006801:Humans; D008016:Life Change Events; D016014:Linear Models; D008297:Male; D008875:Middle Aged; D010555:Personality Inventory / Q000706:statistics & numerical data; D011569:Psychiatric Status Rating Scales; D012307:Risk Factors; D013313:Stress Disorders, Post-Traumatic / Q000175:diagnosis / Q000523:psychology*
keywords: Dissociation; Emotion dysregulation; Emotion regulation; Posttraumatic stress disorder; Trauma