在患有早期精神病症状的患者中,默认模式网络子系统的功能连接
Nicky Lute1, Imke Lemmers-Jansen1,2, Lydia Krabbendam1,2
1Department of Clinical, Neuro and Developmental Psychology, Faculty of Behavioral and Movement Sciences. Vrije Universiteit Amsterdam, Van der Boechorststraat 7, 1081, BT Amsterdam, the Netherlands.
Neuroimage. Reports
|June 26, 2025
概括
静止状态默认模式网络 (DMN) 连接性显示,早期精神病没有群体差异. 然而,减少的DMN子网络连接预测了早期精神病症状患者的负面症状严重程度.
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.
- 脑部成像 脑部成像
背景情况:
- 在慢性精神病和早期精神病中,静止状态默认模式网络 (DMN) 连接性发生变化.
- 该DMN由几个子网络组成,但它们在早期精神病中的连接性尚不清楚.
- 需要进一步调查DMN子网络连接和精神病症状之间的关系.
研究的目的:
- 在早期精神病中调查DMN子网络内部和之间的功能连接.
- 检查DMN子网络连接和早期精神病的临床症状之间的关联.
主要方法:
- 功能性MRI (fMRI) 用于测量静止状态的功能连接.
- 30名患有早期精神病症状的患者和39名健康对照参与了这项研究.
- 分析了DMN子网络内部和之间的连接性.
主要成果:
- 在早期精神病患者和对照人群之间,没有发现DMN子网络连接的显著差异.
- 介质前额外和后端介质子网络之间的功能连接性较低预测了更大的负面症状严重程度.
- 中间前额前和前子网络之间的连接性减少也与负症状严重程度相关.
结论:
- 虽然整体的DMN子网络连接没有差异,但特定的途径与早期精神病的负面症状有关.
- 这些发现表明,在特定的DMN子网络中功能连接的改变可能与精神病症状有关.
- 这项研究提供了对早期精神病中DMN功能连接模式的初步见解.
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