Objective assessment of peritraumatic dissociation: psychophysiological indicators.
Objective assessment of peritraumatic dissociation: psychophysiological indicators.
复制标题
创伤周围分离的客观评估：心理生理指标。
DOI：
10.1176/ajp.154.8.1081
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发表时间：
1997
期刊：
影响因子：
--
通讯作者：
Mechanic,MB
中科院分区：
文献类型：
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作者：
Griffin,MG;Resick,PA;Mechanic,MB
目的 本研究的目的是调查最近遭受强奸的女性受害者与创伤周围分离相关的心理生理变化，并评估这些变化与创伤后应激障碍（PTSD）症状之间的关系。方法 85 名强奸受害者在强奸后 2 周内在实验室环境中接受检查，并收集心率、皮肤电导和非特异性运动的测量结果。还完成了创伤反应的自我报告指数以及评估创伤后应激障碍症状和创伤周围分离的访谈。根据创伤周围解离指数的得分，受试者被分为低水平或高水平的解离。结果指标条目内部一致性良好，得分近似正态分布。高创伤周围解离组的个体表现出与低解离组显着不同的生理反应模式。一般来说，高解离组的自主生理反应受到抑制。该组还包含较大比例的被确定符合 PTSD 症状标准的受试者 (94%)。此外，在高度分离的受试者中，自我报告的痛苦与实验室环境中痛苦的客观生理指标之间存在差异。结论 这些结果为以下观点提供了初步支持：患有 PTSD 症状的人存在一种表现出生理反应减弱的解离亚型。结果还强调了评估创伤幸存者解离症状的重要性。
Objective The aims of this study were to investigate psychophysiological changes associated with peritraumatic dissociation in female victims of recent rape and to assess the relation between these changes and symptoms of posttraumatic stress disorder (PTSD). Method Eighty-five rape victims were examined in a laboratory setting within 2 weeks after the rape, and measures of heart rate, skin conductance, and nonspecific movement were collected. Self-report indexes of reactions to the trauma and interviews to assess PTSD symptoms and peritraumatic dissociation were also completed. On the basis of their scores on the Peritraumatic Dissociation Index, the subjects were classified as having low or high levels of dissociation. Results Items from the index exhibited good internal consistency, and scores were approximately normally distributed. Individuals in the high peritraumatic dissociation group showed a significantly different pattern of physiological responses from those of the low dissociation group. In general, there was a suppression of autonomic physiological responses in the high dissociation group. This group also contained a larger proportion of subjects (94%) identified as meeting PTSD symptom criteria. Also, among the high dissociation subjects there was a discrepancy between self-reports of distress and objective physiological indicators of distress in the laboratory setting. Conclusions The results provide preliminary support for the idea that there is a dissociative subtype of persons with PTSD symptoms who exhibit diminished physiological reactivity. The results also underscore the importance of assessing dissociative symptoms in trauma survivors.