在患有PTSD的难民中,自我构建模块化默认模式网络连接
Belinda J Liddell1, Pritha Das2, Gin S Malhi3
1School of Psychological Sciences, University of Newcastle, Australia; School of Psychology, UNSW Sydney, Australia.
Journal of affective disorders
|June 12, 2024
概括
自我构建影响创伤后应激障碍 (PTSD) 中的大脑连接. 在患有创伤后应激障碍的难民中,较高的集体主义自我构建与腹中介前额叶皮层 (vmPFC) 的连接性降低相关.
科学领域:
- 神经科学是一个神经科学.
- 精神病学是一个精神病学.
- 社会心理学 社会心理学
背景情况:
- 自建和创伤后应激障碍 (PTSD) 独立地与改变的自我参考处理和默认模式网络 (DMN) 活动有关.
- 之前的研究还没有研究自我构建对患有PTSD的个体DMN连接性的影响.
研究的目的:
- 为了检查自我构建如何影响默认模式网络 (DMN) 连接在一个样本的难民参与者与PTSD.
- 通过考虑自我构建的作用来探索PTSD的神经基础.
主要方法:
- 休息状态功能磁共振成像 (fMRI) 用于评估93名难民参与者的DMN连接 (48名患有PTSD,45名对照).
- 自建指数是通过在自建量表上从个人主义得分中减去集体主义得分来计算的.
- 独立组件分析确定了功能网络连接模式.
主要成果:
- 在前腹中介DMN中发现了PTSD状态和自我构建指数之间的显著相互作用,具体涉及左腹中介前额叶皮质 (vmPFC) 和腹前带膜皮质.
- 在患有PTSD且表现出更高水平的集体主义自我构建的个体中,vmPFC内部的连接性减少.
结论:
- 自我构建可能在塑造PTSD的神经架构方面发挥作用.
- 在vmPFC中的功能障碍与核心的PTSD机制有关,例如情绪失调和自我参考处理.
- 研究结果表明,自我构建是PTSD评估和治疗中需要考虑的关键因素,尽管结果可能不会超出难民人口范围.
关键词:
跨文化跨文化跨文化默认模式的网络是默认模式.创伤后应激障碍 (PTSD) 是一种自己构建的自我构建.风中介前额叶皮质 (ventromedial prefrontal cortex) 是一个前额叶皮质.功能磁力共振成像 (fMRI) 是一种更多相关视频
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