Department of Methodology and Statistics, School of Social and Behavioral Sciences, Tilburg University, Tilburg, the Netherlands.
Department of Psychiatry, Western University, London, Ontario, Canada.
J Trauma Stress. 2020 Feb;33(1):19-28. doi: 10.1002/jts.22488. Epub 2020 Feb 22.
In recent years, there has been a growing recognition of a dissociative subtype of posttraumatic stress disorder (D-PTSD), characterized by experiences of depersonalization (DP) and derealization (DR), among individuals with PTSD. Little is known, however, about how experiences of DP and/or DR are associated with the experience of other PTSD symptoms. The central aim of the present paper was to explore the associations among DP, DR, and other PTSD symptoms by means of a network analysis of cross-sectional data for 557 participants whose overall self-reported PTSD symptom severity warranted a probable PTSD diagnosis. Three notable findings emerged: (a) a strong association between DP and DR, (b) the identification of DP as the most central symptom in the network, and (c) the discovery that clusters of symptoms in the network were roughly consistent with DSM-5 PTSD criteria. We discuss these findings in light of some considerations, including the nature of our sample and the limits of interpreting cross-sectional network models.
近年来，人们越来越认识到创伤后应激障碍（PTSD）有一种分离亚型（D-PTSD），其特征是经历人格解体（DP）和现实解体（DR），在 PTSD 患者中。然而，关于 DP 和/或 DR 的经历如何与其他 PTSD 症状的经历相关，人们知之甚少。本文的主要目的是通过对 557 名参与者的横断面数据进行网络分析，探讨 DP、DR 和其他 PTSD 症状之间的关联，这些参与者的总体自我报告 PTSD 症状严重程度需要进行可能的 PTSD 诊断。有三个值得注意的发现：（a）DP 和 DR 之间存在很强的关联，（b）确定 DP 是网络中最核心的症状，（c）发现网络中的症状群大致符合 DSM-5 PTSD 标准。我们根据一些考虑因素讨论这些发现，包括我们的样本性质和解释横断面网络模型的局限性。
