摘要：Objective: A dissociative subtype has been recognized based on the presence of experiences of depersonalization and derealization in relation to DSM-IV posttraumatic stress disorder (PTSD). However, the dissociative subtype has not been assessed in a community sample in relation to the revised DSM-5 PTSD criteria. Moreover, the 20-item PTSD Checklist for DSM-5 (PCL-5) currently does not assess depersonalization and derealization.Method: We therefore evaluated two items for assessing depersonalization and derealization in 557 participants recruited online who endorsed PTSD symptoms of at least moderate severity on the PCL-5.Results: A five-class solution identified two PTSD classes who endorsed dissociative experiences associated with either 1) severe or 2) moderate PTSD symptom severity (D-PTSD classes). Those in the severe dissociative class were particularly likely to endorse histories of childhood physical and sexual abuse. A principal axis factor analysis of the symptom list identified six latent variables: 1) Reexperiencing, 2) Emotional Numbing/Anhedonia, 3) Dissociation, 4) Negative Alterations in Cognition & Mood, 5) Avoidance, and 6) Hyperarousal.Conclusions: The present results further support the presence of a dissociative subtype within the DSM-5 criteria for PTSD.Keywords: Posttraumatic stress disorder; dissociative subtype; dissociation; trauma-related altered states of consciousness; psychological traumaResponsible Editor: Julian D. Ford, University of Connecticut Health Center, United States.For the abstract or full text in other languages, please see Supplementary files in the column to the right (under ‘Article Tools’)(Published: 1 April 2015)Citation: European Journal of Psychotraumatology 2015, 6: 26406 - http://dx.doi.org/10.3402/ejpt.v6.26406
关键词：Posttraumatic stress disorder; dissociative subtype; dissociation; trauma-related altered states of consciousness; psychological trauma
