King's College London, Institute of Psychiatry, Department of Psychology, UK.
J Behav Ther Exp Psychiatry. 2009 Dec;40(4):499-514. doi: 10.1016/j.jbtep.2009.07.001. Epub 2009 Jul 24.
Correlational studies have shown that trauma-related rumination predicts chronic post-traumatic stress disorder (PTSD). This study aimed to experimentally test the hypothesis that rumination is causally involved in the development and maintenance of PTSD symptoms. A video depicting the aftermath of serious road traffic accidents was used as an analogue stressor. After having watched the video, N=101 healthy participants were randomly assigned to a guided thinking task designed to induce (a) rumination, (b) memory integration and (c) distraction. In line with the hypotheses, rumination led to less recovery from sad mood triggered by the video than the other two conditions. In addition, self-reported state levels of rumination during the guided thinking task predicted subsequent intrusive memories in the session. However, no significant main effect of the experimental manipulation on intrusive memories of the video was found. Results of exploratory analyses suggested possible sex differences in the way the processing manipulations were effective. Taken together, the results partially support the hypothesis that rumination is involved in the maintenance of negative mood and post-traumatic stress symptoms.
相关性研究表明，与创伤有关的反刍思维可预测慢性创伤后应激障碍（PTSD）。本研究旨在通过实验检验反刍思维是否会导致 PTSD 症状的发展和维持这一假设。一段描述严重道路交通事故后果的视频被用作模拟应激源。在观看完视频后，101 名健康参与者被随机分配到一个引导思维任务中，该任务旨在诱发（a）反刍，（b）记忆整合和（c）分心。与假设一致的是，与其他两种条件相比，反刍组在视频引发的悲伤情绪中恢复得更慢。此外，在引导思维任务中自我报告的状态反刍水平预测了随后在该时段的侵入性记忆。然而，实验操作对视频侵入性记忆没有显著的主要影响。探索性分析的结果表明，处理操作的有效性可能存在性别差异。总的来说，研究结果部分支持了反刍思维与负面情绪和创伤后应激症状的维持有关的假设。
