一个基于连接组的精神分裂症错觉模型,在工作记忆任务下使用功能连接
Xiawei Liu1, Zhening Liu1, Feiwen Wang1
1Department of Psychiatry, National Clinical Research Center for Mental Disorders, and National Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China.
Journal of psychiatric research
|July 9, 2024
概括
精神分裂症错觉与工作记忆 (WM) 缺陷有关. 一项研究发现,一个特定的大脑网络,涉及默认模式,突出性和感官-体运动网络,与患者的妄想严重程度相关.
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.
- 认知科学 认知科学
背景情况:
- 妄想是精神分裂症的一个关键症状,可能是由认知偏见引起的.
- 工作记忆 (WM) 对认知至关重要,与妄想形成密切相关.
- 在精神分裂症中连接WM和妄想的神经机制仍未得到充分探索.
研究的目的:
- 调查神经机制是工作记忆和精神分裂症的妄想之间的关系的基础.
- 用功能连接组数据识别和验证与妄想相关的大脑网络.
主要方法:
- 230名精神分裂症患者接受了N-back WM任务fMRI扫描.
- 基于Connectome的预测建模 (CPM) 用于识别与WM相关的功能连接体.
- 进行了相关性分析,以在两个独立数据集中将已识别的网络与错觉严重程度联系起来.
主要成果:
- 确定了一个与妄想相关的网络,包括默认模式 (DMN),环眼 (CON),突出 (SN),下皮层,感官-体力运动 (SMN) 和视觉网络之间的连接.
- 在这两个数据集中,该网络与妄想严重程度 (通过SAPS和PANSS测量) 有显著的相关性.
- 基于WM相关的功能连接体的个性化妄想模型显示,与症状严重程度有很强的相关性.
结论:
- 这项研究成功地确定并验证了与精神分裂症中工作记忆功能相关的错觉相关的大脑网络.
- 研究结果强调了DMN,CON,SMN和皮下网络中的功能连接在错觉的表现中的重要性.
- 这项研究为了解精神分裂症认知缺陷和精神病症状之间的联系提供了神经基础.
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