在精神分裂症的听觉语言幻觉中,半球间和半球内侧面化变化:休息状态功能连接的见解
Jinguang Li1,2, Jingqi He3, Honghong Ren1,4
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, 310016, Hunan, China.
European archives of psychiatry and clinical neuroscience
|January 3, 2025
概括
在精神分裂症中,听觉语言幻觉 (AVH) 显示大脑侧向变化. 这项研究在AVH患者中发现了独特的右向分离和左向整合模式,与症状严重程度有关.
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.
- 脑部成像 脑部成像
背景情况:
- 听觉语言幻觉 (AVHs) 是精神分裂症的核心症状,通常与大脑侧向变化有关.
- 精确的神经机制和AVH中半球横向化的特定模式仍然不完全理解.
研究的目的:
- 调查功能性半球内和半球间连接模式.
- 在精神分裂症患者中确定与AVH相关的特定横向化差异.
主要方法:
- 休息状态功能磁共振成像 (fMRI) 数据来自60名精神分裂症患者持久性AVH (p-AVH),39名没有AVH的患者 (n-AVH) 和59名健康对照 (HC).
- 通过使用同位素地图,对200个同位素感兴趣区域 (ROI) 的功能分离和整合的横向化指数的量化.
主要成果:
- 在p-AVH组表现出明显的右侧分离在横向前额叶皮层同位素对.
- 在p-AVH组中,在 temporoparietal junction内的下垂体叶片同型对中观察到向左集成的侧面化.
- 前额叶皮层分离的横向化与AVH严重程度有负相关性,表明右侧偏移更大,症状严重程度增加.
结论:
- 功能分离和整合的改变半球侧面化在AVHs的病理生理学中起着关键作用.
- 这些特定的横向化变化似乎是AVH特有的,并且在没有幻觉的精神分裂症患者中不存在.
- 这些发现为精神分裂症中AVH的神经支提供了新的见解.
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