在第一发精神分裂症中,与听觉语言幻觉相关的异常皮质拓图案
Ziyang Gao1,2,3, Hui Sun1,2,3, Fei Zhu1,2,3
1Department of Radiology, Huaxi MR Research Center (HMRRC), Institute of Radiology and Medical Imaging. West China Hospital of Sichuan University, Chengdu, Sichuan, China.
Translational psychiatry
|November 27, 2025
概括
精神分裂症的听觉语言幻觉 (AVH) 涉及到大脑网络组织的破坏. 这项研究揭示了AVH患者的皮层拓和网络集成的改变,与特定的基因表达和神经递质系统有关.
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.
- 神经成像是一种神经成像.
背景情况:
- 在精神分裂症中,听觉语言幻觉 (AVH) 与大脑网络功能的改变有关.
- 以前的研究表明,AVH中大脑网络的分离和整合失调.
- 在AVH中功能网络的宏观地形变化仍然不清楚.
研究的目的:
- 在精神分裂症患者中研究大脑功能网络的宏观地形变化.
- 用皮质梯度映射来描述功能组织的分布模式.
- 探索与AVH相关的地形变化的潜在分子基础.
主要方法:
- 利用了来自第一发药前精神分裂症患者 (有或没有AVH) 和健康对照的休息状态功能性MRI数据.
- 提取了3D梯度空间中的内在连接梯度和分析了3D梯度空间中的地形特征.
- 结合了基因和神经递质分布数据与神经成像发现.
主要成果:
- 在AVH患者中观察到的主要单模向跨模皮质梯度的退化.
- 在AVH患者中,减少了3D多路分散,特别是在高阶跨模网络之间.
- 与突触发育和神经递质系统 (上腺素,乙胆) 相关的基因表达相关的与AVH相关的地形干扰.
结论:
- 精神分裂症与AVH的特点是皮质层次结构和网络集成的破坏.
- 改变的大脑网络拓形状是AVH病理生理学的关键特征.
- 突触和神经递质系统的失调可能是这些地形变化的基础.
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