听觉和视觉thalamocortical连接性改变在没有药物的精神分裂症患者:一个个性化的感觉thalamic定位和休息状态功能连接性研究研究
John C Williams1,2,3, Philip N Tubiolo1,2,4, Roberto B Gil1,5,6
1Department of Psychiatry and Behavioral Health, Renaissance School of Medicine at Stony Brook University, Stony Brook, NY 11794.
medRxiv : the preprint server for health sciences
|January 7, 2025
概括
视觉 thalamocortical 过度连接是精神分裂症的一般标志物. 精神分裂症的听觉甲状腺皮层连接性差异与积极的症状严重程度有关,并非在所有患者中普遍存在.
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.
- 医疗成像医学成像
背景情况:
- 精神分裂症的病理生理学涉及甲状腺皮质电路功能障碍.
- 临床前模型显示,听觉皮层传输减少,这可能解释听觉幻觉.
- 人类研究报告了精神分裂症 (PSZ) 患者的一般性thalamocortical超连接性.
研究的目的:
- 为了调查局部的听觉和视觉thalamic核连接在无药的PSZ.
- 为了比较PSZ和健康对照 (HC) 之间的静止状态功能连接 (RSFC).
- 在精神分裂症中将乳头皮层连接与积极的症状严重程度联系起来.
主要方法:
- 使用静止状态功能磁共振成像 (fMRI) 的病例对照研究.
- 通过特定的fMRI任务定位听觉和视觉thalamic核.
- 在82 PSZ和55 HC的局部核和初级感觉皮层之间评估了RSFC.
主要成果:
- 在PSZ和HC之间听觉皮层连接方面没有显著差异.
- 听觉甲状腺皮层超连接性与积极的症状严重程度相关.
- 在PSZ中,视觉thalamocortical连接性显著更高,特别是在高阶视觉皮层.
结论:
- 视觉甲状腺皮层超连接性作为精神分裂症的通用标记.
- 听觉甲状腺皮层超连接性与精神分裂症的积极症状严重程度特别相关.
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