在精神分裂症中揭示认知网络和小脑之间的连接性改变
Margherita Biondi1, Marco Marino2, Dante Mantini3
1Padova Neuroscience Center, University of Padova, Italy.
Schizophrenia research
|July 16, 2024
概括
精神分裂症 (SZ) 涉及改变大脑连接,特别是皮质和小脑之间的连接,影响认知功能. 这项研究将这些神经变化与精神分裂症患者的负面症状联系起来.
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:
- 认知功能障碍显著影响精神分裂症 (SZ) 患者的生活质量和治疗.
- 改变皮层-小脑通信被假设是SZ认知障碍的基础.
- 这些SZ认知缺陷的神经相关性在很大程度上仍未确定.
研究的目的:
- 调查SZ患者皮质网络和小脑之间的静止状态功能连接 (rsFC).
- 为了确定神经相关的认知障碍在SZ.
- 探索RSFC与SZ中的临床症状 (PANSS分数) 之间的关系.
主要方法:
- 利用了来自SchizConnect数据库的74名SZ患者和74名健康对照 (HC) 的fMRI数据.
- 采用基于种子的连接方法来分析皮层网络和小脑之间的rsFC.
- 与阳性和阴性综合征量表 (PANSS) 评分相关的rsFC变化.
主要成果:
- 与HC相比,SZ患者在与注意力相关的皮质网络中表现出增加的rsFC.
- 观察到小脑区域和注意力网络之间的连接性增加.
- 改变的小脑连接与注意力,语言和情感缺陷相关,根据PANSS测量.
结论:
- 研究结果表明,小脑内以及小脑与皮质网络之间的连接在SZ中发生了变化.
- 这些连接性变化与精神分裂症的认知缺陷和负面症状有关.
- 小脑在SZ观察到的认知和情感功能障碍中发挥着至关重要的作用.
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