强迫症障碍的休息状态功能连接性改变:全球强迫症研究中的连接性和临床概况之间的关系
Anders Lillevik Thorsen1,2,3, Niels T de Joode3,4, Petra J W Pouwels5,6
1Bergen Center for Brain Plasticity, Haukeland University Hospital, Bergen, Norway.
medRxiv : the preprint server for health sciences
|August 6, 2025
概括
与健康对照组相比,患有强迫症 (OCD) 个体表现出广泛的大脑低连接性. 在强迫症中,这种大脑连接的变化与药物史,抑郁症和特定症状类型等因素有关.
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.
- 医疗成像医学成像
背景情况:
- 强迫症 (OCD) 与有关静止状态功能连接 (FC) 的不一致发现有关.
- 以前的研究还没有明确定义强迫症和临床特征之间的关系.
- 全球强迫症研究旨在在多个国际地点确定强迫症中一致的FC变化.
研究的目的:
- 调查和确定成年人强迫症 (OCD) 休息状态功能连接 (FC) 的一致变化.
- 探索强迫症患者中FC模式和临床特征之间的关联.
主要方法:
- 利用休息状态功能磁共振成像 (fMRI) 数据从263个没有药物的成年人与强迫症和254个健康的对照 (HC).
- 采用以种子为基础的FC分析,基于网络的统计 (NBS),并在以图谱为基础的子网络内和之间检查了FC.
- 分析了群体差异和临床关联,使用调整为共变量的一般线性模型.
主要成果:
- 强迫症 (OCD) 与健康对照人群 (HC) 相比,在核和左小脑之间显示出较弱的FC.
- 基于网络的统计数据显示,强迫症患者在249个地区普遍存在低连接性.
- 强迫症中的功能连接 (FC) 与先前的药物使用,并发性抑郁症,焦虑严重程度和特定症状 (性/宗教,污染) 有关.
结论:
- 患有强迫症的个人表现出相对于HC的广泛大脑低连接性,具有显著的个体间变异性.
- 观察到的FC变化与药物史,并发性疾病,焦虑水平和特定的强迫症症状集群有关.
- 在强迫症中,一般的低连接性是旨在调节大脑电路连接性的干预措施的潜在目标,例如跨磁刺激.
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