主要抑郁症,焦虑症和童年创伤中的动态功能连接大脑状态动态和拓组织
Felix Linsen1, Josine E Verhoeven2, Marie-José van Tol3
1Department of Psychiatry, Amsterdam Neuroscience, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands; Department of Anatomy & Neurosciences, Amsterdam Neuroscience, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands.
Journal of affective disorders
|August 24, 2025
概括
大型抑郁症和焦虑症改变大脑连接,显示功能分离的减少. 儿童创伤并没有显著改变这些患者的大脑连接模式.
科学领域:
- 神经科学
- 精神病学
- 医学成像
背景情况:
- 功能连接动态的改变与严重抑郁症 (MDD),焦虑症 (ANX) 和童年创伤 (CT) 有关.
- 这些情况对大脑连接动态的综合影响尚不清楚.
- 这项研究研究了MDD和/或ANX个体的连接状态,考虑CT的影响.
研究的目的:
- 检查MDD和/或ANX患者的功能连接状态动态和空间组织.
- 评估童年创伤对这些连接模式的影响.
- 将临床组与健康对照组之间的大脑连接进行比较.
主要方法:
- 分析了150名MDD/ ANX患者的休息状态fMRI数据 (86名CT患者,64名无CT患者) 和57名对照患者.
- 在边缘时间序列上使用k-means集群识别功能连接状态.
- 在不同群体中比较了状态动态和拓特征.
主要成果:
- 确定了四种不同的功能连接状态.
- 两组之间没有观察到显著的状态动态差异.
- 与对照组相比,MDD/ANX个体在弱连接状态中表现出改变的拓 (模块化减少,总效率增加).
- 对CT连接性的影响并不总是观察到的.
结论:
- MDD/ANX与变化的拓组织有关,表明功能分离较少,信息处理可能受损.
- 观察到的大脑连接的变化主要是由MDD/ANX驱动的,而不是CT的存在或不存在.
- 需要进一步研究以充分阐明这些疾病背后的神经机制.
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