Department of Clinical Psychology, Utrecht University, Utrecht, the Netherlands.
Department of Methodology and Statistics, Tilburg University, Tilburg, the Netherlands.
J Affect Disord. 2020 Mar 1;264:365-369. doi: 10.1016/j.jad.2019.11.027. Epub 2019 Nov 9.
Tonic immobility (TI; a state of motor arrest during threat) and has been found to be associated with the development of psychopathology. It also hindered recovery from posttraumatic stress disorder (PTSD) after pharmacological treatment. The present study investigated the role of TI in recovery from PTSD in a large representative community sample with mixed traumas outside an exclusive treatment context.
Participants with PTSD from the panel for Longitudinal Internet Studies for the Social Sciences (LISS) completed measures for trauma, PTSD symptoms, and peritraumatic responses (fear, dissociation, and TI) in two subsequent years. Traumatized participants with PTSD were selected for the analyses (N = 262).
TI was a relevant predictor for increased PTSD symptoms in year 2 after controlling for peritraumatic fear, peritraumatic dissociation, and PTSD symptoms in year 1, especially in abuse victims. Peritraumatic fear and dissociation no longer predicted PTSD in year 2 after entering TI in the model.
Our results indicate that TI may indeed hinder recovery from PTSD. TI may thus be a relevant factor to take into account after trauma and in treatment. The effects of TI may be especially negative for abuse victims.
紧张性不动（TI；在受到威胁时出现的运动停止状态）与精神病理学的发展有关。它还会阻碍创伤后应激障碍（PTSD）在药物治疗后的恢复。本研究在一个混合创伤的大型代表性社区样本中，在没有专门治疗的情况下，调查了 TI 在 PTSD 恢复中的作用。
来自社会科学纵向互联网研究小组（LISS）的 PTSD 参与者在接下来的两年中完成了创伤、PTSD 症状和创伤前反应（恐惧、分离和 TI）的测量。选择有 PTSD 的创伤参与者进行分析（N=262）。
在控制了第一年的创伤前恐惧、创伤前分离和 PTSD 症状后，TI 是第二年 PTSD 症状增加的一个相关预测因素，尤其是在受虐待的受害者中。在模型中加入 TI 后，创伤前恐惧和分离不再预测第二年的 PTSD。
我们的结果表明，TI 确实可能阻碍 PTSD 的恢复。因此，TI 可能是创伤后和治疗中需要考虑的一个相关因素。TI 的影响对受虐待的受害者可能特别负面。
