有效的连接识别了精神分裂症中分离的脑大脑小脑网络组织
Kami Pearson1, Katrina Aberizk1, Cindy An1
1The Ohio State University Wexner Medical Center.
Research square
|November 24, 2025
概括
精神分裂症涉及中断的大脑网络,小脑起着关键作用. 这项研究发现,精神分裂症患者的小脑连接性发生变化,影响前额头网络,并可能导致认知缺陷.
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.
- 网络科学 网络科学
背景情况:
- 精神分裂症与大规模大脑网络的破坏有关.
- 小脑在认知和影响中的作用越来越被认可,但其在精神分裂症的方向影响尚不清楚.
研究的目的:
- 在精神分裂症中研究皮质-状-大脑细胞网络中的有效连接性.
- 了解小脑对精神分裂症患者大脑网络的定向影响.
主要方法:
- 分析了134名参与者的休息状态fMRI数据 (精神分裂症和健康对照).
- 在精神分裂症中发现了ALFF/fALFF降低的大脑小脑区域 (ROI).
- 用组代多重模型估计 (GIMME) 来建模有效的连接.
主要成果:
- 四个小脑群在精神分裂症中显示较低的ALFF/fALFF.
- 在精神分裂症中发现了明确的小脑内和大脑前额外有效连接模式,在对照中没有这种模式.
- 脑小区13已成为精神分裂症的中心枢纽,其模式在症状子组中一致.
结论:
- 小脑参与精神分裂症中被破坏的网络动态,影响前额头目标.
- 变化的小脑连接可能是精神分裂症认知和情感缺陷的基础.
- 这些发现表明,对于精神分裂症的电路级干预措施,有新的目标.
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