抑郁症中的反复反复的负面思维与负面思维状态中的功能连接有关,而不是静止状态
Masaya Misaki1, Aki Tsuchiyagaito1, Salvador M Guinjoan2
1Laureate Institute for Brain Research, Tulsa, OK, USA; Oxley College of Health Sciences, The University of Tulsa, Tulsa, OK, USA.
Journal of affective disorders
|August 15, 2023
概括
抑郁症中重复的负面思维与负面思维任务中的大脑活动有关,而不仅仅是休息状态连接. 这表明活跃的心理过程,而不是被动的状态,驱动主要抑郁障碍的这种症状.
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.
- 认知科学 认知科学
背景情况:
- 休息状态功能连接 (RSFC) 是抑郁症中反复负面思维 (RNT) 的一个建议指标.
- 目前尚不清楚RSFC在重大抑郁症 (MDD) 中的变化是否直接反映RNT或其他个体特征.
研究的目的:
- 调查RSFC,诱导负面思维 (NTFC) 期间的功能连接性和MDD中的RNT特征之间的关系.
- 为了比较RSFC和NTFC之间的RNT特征和全脑连接模式的可预测性.
主要方法:
- 使用基于连接组的预测建模 (CPM) 和连接组全域关联 (CWA) 分析.
- 对比了36名MDD参与者的fMRI扫描和26名健康对照在休息期间和诱导负面思维状态.
主要成果:
- 通过CPM,RSFC和NTFC都区分了健康和抑郁的个人.
- 在MDD中的RNT特征可以从NTFC预测,但不能从RSFC.
- 抑郁症中的负面思维在NTFC期间显示出默认模式和执行控制区域之间的连接性增加,与RSFC不同.
结论:
- 抑郁症中的RNT涉及多个大脑网络的活跃心理过程,不仅仅反映在休息状态的大脑功能中.
- 虽然RSFC显示了MDD中的功能变化,但它可能不会直接捕捉RNT过程本身.
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