Laboratory for Traumatic Stress Studies, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, 16 Lincui Road, Beijing, 100101, China.
Department of Psychology, University of Chinese Academy of Sciences, Beijing, China.
J Abnorm Child Psychol. 2020 Oct;48(10):1303-1311. doi: 10.1007/s10802-020-00677-w.
This study was designed to investigate the roles of numbing of positive and negative emotions in PTSD symptomology and related functional impairments. 14,465 Chinese children and adolescents who personally experienced the 2008 Wenchuan earthquake (in Sichuan province, China) took part in the study. Emotional numbing and other PTSD symptoms were assessed by the University of California-Los Angeles PTSD Reaction Index for Children. Functional impairment was measured by the Pediatric Quality of Life Inventory 4.0 Generic Core Scales. Item response theory (IRT) analysis showed that both numbing of positive and negative emotions demonstrated acceptable item response characteristics; numbing of positive emotions had better discrimination. Group comparisons revealed that participants who reported numbing of both positive and negative emotions had the highest risk of developing PTSD, most severe PTSD symptoms and functional impairments, with large effect sizes when compared with participants with no emotional numbing symptoms. Reporting only numbing of positive emotions had moderate effects, and reporting only numbing of negative emotions had smaller effects. The results revealed associations between emotional numbing patterns, posttraumatic stress symptoms and impairments in quality of life, and suggests that additional research is needed to explore generalized emotional numbing in children and adolescents in future PTSD research.
本研究旨在探讨正负情绪麻木在 PTSD 症状学及相关功能障碍中的作用。14465 名曾亲身经历 2008 年汶川地震（中国四川省）的中国儿童和青少年参与了这项研究。情绪麻木和其他 PTSD 症状由加利福尼亚大学洛杉矶分校 PTSD 儿童反应指数进行评估。功能障碍通过儿科生活质量量表 4.0 通用核心量表进行衡量。项目反应理论（IRT）分析表明，正性和负性情绪的麻木均表现出可接受的项目反应特征；正性情绪的麻木具有更好的区分度。组间比较显示，报告同时存在正性和负性情绪麻木的参与者发生 PTSD 的风险最高，PTSD 症状和功能障碍最严重，与无情绪麻木症状的参与者相比，差异具有统计学意义（效应量较大）。仅报告正性情绪麻木的参与者具有中等效应，而仅报告负性情绪麻木的参与者则具有较小的效应。研究结果揭示了情绪麻木模式与创伤后应激症状和生活质量受损之间的关联，并表明未来 PTSD 研究中需要进一步研究儿童和青少年的普遍情绪麻木。
