Dissociation and diminished sense of agency are experiential distortions of disintegration in the perception of self and action. Although one is often implied in the other, they are seldom studied together. Assessing their relationship and shared influences may allow for a more comprehensive and nuanced understanding of dissociative experiences. We aimed to examine their temporal (concurrent or directional) co-occurrence, and to elucidate their etiology, focusing on posttraumatic symptoms (PTS), poor sleep, and their hypothesized joint effect. N = 113 adults oversampled for the existence of trauma exposure history reported PTS and then, for a week, wore an actigraphic sleep monitor, reported subjective sleep quality each morning, and reported state dissociation (depersonalization, derealization, and absorption) and sense of agency four times each day. Data were analyzed using multilevel linear modeling. Higher state dissociation correlated with diminished state sense of agency, but only contemporaneously, not directionally. Both hypothesized etiological factors, namely, PTS (especially complex) and poor sleep (objective and subjective) predicted state dissociation and diminished state sense of agency, but psychological distress seemed to overshadow these main effects. However, robust interactive effects suggested that poor sleep predicted dissociation and disruptions in the sense of agency only among individuals with low PTS. These findings suggest that PTS and poor sleep quality are separate paths to dissociation and impaired sense of agency. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

中文翻译：

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创伤后症状和睡眠不佳是导致机构中断和解离的独立途径：一项客观睡眠评估的纵向研究。


解离和代理感减弱是自我和行动认知瓦解的体验扭曲。尽管其中一个经常隐含于另一个，但很少将它们放在一起研究。评估他们的关系和共同的影响可能有助于对解离体验有更全面和细致的理解。我们的目的是检查它们的时间（同时或定向）共现，并阐明它们的病因，重点关注创伤后症状（PTS）、睡眠不佳及其假设的关节效应。 N = 113 名成年人对是否存在创伤暴露史进行过采样，报告了 PTS，然后佩戴活动记录睡眠监测仪，每天早上报告主观睡眠质量，并报告状态分离（人格解体、现实解体和专注）和代理感每天四次。使用多级线性模型分析数据。较高的国家分离度与国家机构意识的减弱相关，但只是同时发生的，而不是定向的。两种假设的病因因素，即 PTS（特别复杂）和睡眠不佳（客观和主观）都预测了状态分离和状态意识减弱，但心理困扰似乎掩盖了这些主要影响。然而，强大的交互效应表明，只有在 PTS 较低的个体中，睡眠不佳才会导致代理意义上的解离和破坏。这些发现表明，PTS 和睡眠质量差是导致解离和代理感受损的不同途径。 （PsycInfo 数据库记录 (c) 2024 APA，保留所有权利）。