视觉运动功能连接受损的第一期药物先天的患者,主要的抑郁障碍
Yongbo Hu1,2,3,4, Shiyi Li5, Jin Li6
1Department of Radiology, Huaxi MR Research Center (HMRRC), West China Hospital of Sichuan University, Chengdu 610041, China.
Cerebral cortex (New York, N.Y. : 1991)
|November 22, 2023
概括
大型抑郁症 (MDD) 与视觉系统损伤有关. 在MDD患者中发现视觉和感觉运动网络之间的功能连接性减少,特别是右侧皮关节.
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:
- 感知功能障碍是主要抑郁症 (MDD) 认知和情绪问题的关键.
- 在MDD中视觉系统损伤仍未得到充分研究.
- 第一次发作,从未服用过药物的MDD患者提供了一个独特的队列来研究早期神经变化.
研究的目的:
- 为了研究第一次发作,以前没有服用过药物的MDD患者视觉系统中的功能连接性改变.
- 探索视觉处理区域的解剖学变化.
- 为了将功能连接缺陷与与视觉运动处理相关的行为措施相关联.
主要方法:
- 在190名MDD患者和190名健康对照中利用休息状态功能磁共振成像 (fMRI).
- 采用以个人为导向的方法,将大脑皮层分为92个感兴趣的区域.
- 进行行为相关性分析,将神经发现与认知功能联系起来.
主要成果:
- 在MDD患者中,观察到右侧角关 (视觉网络) 和感觉运动网络区域之间功能连接的显著减少.
- 在MDD患者中,右侧皮关节的体积显著减少.
- 功能连接性减少与视觉运动处理中的抑制控制受损有显著的相关性.
结论:
- 即使在MDD的早期阶段,视觉和感觉运动网络之间的功能连接也会减少.
- 右侧头关节显示了解剖学和功能障碍,可能作为MDD中断路的枢纽.
- 这些视觉系统缺陷可能导致视觉运动处理中的抑制控制受损,以及MDD的整体病理生理学.
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