大型静止状态网络在重大抑郁症中协同激活的概率
Lea Teutenberg1, Nooshin Javaheripour1, Sarah Alizadeh1
1Philipps-Universität Marburg, Faculty of Medicine, Department of Psychiatry and Psychotherapy, Rudolf-Bultmann- Str. 8, D-35039 Marburg, Germany; Philipps-Universität Marburg, Center for Mind, Brain, and Behavior (CMBB), Germany.
Biological psychiatry. Cognitive neuroscience and neuroimaging
|November 23, 2025
概括
重度抑郁症 (MDD) 涉及到大脑网络协同激活模式的改变,特别是涉及到默认模式网络 (DMN),前端对象网络 (FPN) 和视觉网络 (VIS). 这些网络动态与MDD诊断和症状严重程度有关.
科学领域:
- 神经科学是一个神经科学.
- 计算精神病学是一种计算精神病学.
- 系统神经科学 系统神经科学
背景情况:
- 大型抑郁症 (MDD) 在大规模的大脑网络中呈现出复杂,分布式的变化.
- 了解协同网络模式对于识别MDD驱动器至关重要.
- 需要整合性方法来分析复杂的大脑网络相互作用.
研究的目的:
- 调查MDD和没有MDD的个体的同时静止状态网络 (RSN) 激活模式或协同激活.
- 探索动态网络组织与MDD临床症状之间的关系.
- 将动态系统方法应用于静止状态fMRI数据.
主要方法:
- 利用双向最大值模型从静止状态fMRI数据估计RSN协同激活概率.
- 分析了867名参与者的数据:487名健康对照 (HC),175名目前的MDD (cMDD) 和205名缓解的MDD (rMDD).
- 检查了7个RSN的协同激活模式,包括默认模式网络 (DMN),前端对联网络 (FPN) 和视觉网络 (VIS),捕获了128种可能的网络状态.
主要成果:
- 在cMDD中观察到高的协同激活概率,特别是涉及DMN,FPN和VIS.
- 一个特定的协同激活状态 (DMN,VIS,背部注意网络 [DAN],FPN,语言网络 [LAN]) 与MDD诊断和症状严重程度有很强的相关性.
- 准则相关性分析确定了两个网络症状概况,将DMN/DAN联合激活与认知/情绪症状联系起来,以及感觉运动网络 (SMN) /VIS联合激活与认知/体质症状联系起来.
结论:
- 特别是在急性发作中,MDD的特征是DMN,FPN和VIS联合激活的占主导地位,表明变化的动态网络组织.
- 大脑状态动态的变化与MDD症状显著相关.
- 这项研究强调了动态网络分析对于理解MDD病理生理学的重要性.
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