前-状动态连接性与帕金森病中的多巴胺基运动反应有关
Lukas Hensel1, Aline Seger1, Ezequiel Farrher2
1University of Cologne, University Hospital Cologne, Department of Neurology, 50937, Köln, Germany; Cognitive Neuroscience, Institute of Neuroscience and Medicine (INM-3), Forschungszentrum Jülich, 52425, Jülich, Germany.
Parkinsonism & related disorders
|August 7, 2023
概括
帕金森病 (PD) 患者的动态功能网络连接 (DFC) 显示了多巴胺运动反应的差异. 改变的前-状连接动态,特别是前中环皮层/后前环皮层和皮层之间的变化,与运动反应相关.
科学领域:
- 神经科学是一个神经科学.
- 功能神经成像 功能神经成像
- 运动障碍 运动障碍
背景情况:
- 帕金森病 (PD) 呈现出可变的多巴胺基运动反应,可能与亚型和皮质地板功能连接有关.
- 传统的fMRI专注于平均连接性,可能会忽视对多巴胺反应至关重要的时间动态.
研究的目的:
- 研究休息状态动态功能网络连接 (DFC) 与PD患者的多巴胺基运动反应之间的关联.
- 探讨与健康对照人群相比,低和高的多巴胺运动反应的PD患者之间的时间连接模式是否不同.
主要方法:
- 在32名PD患者和18名健康对照 (HC) 中评估了静态和DFC.
- 根据多巴胺基运动反应将PD患者分为低响应者和高响应者.
- 在休息状态fMRI期间分析功能连接模式.
主要成果:
- 高响应者在一个区域一体化州度过的时间比HC更长.
- 在分离状态下,在低响应者中观察到前半环皮层/背前环皮层 (aMCC/dACC) 和骨之间的下部DFC.
- 这种改变的DFC与多巴胺运动反应有显著的相关性.
结论:
- 额头-上连接的时间动态与PD中的临床相关信息有关.
- DFC模式为帕金森病的运动反应变化提供了洞察力.
- 考虑动态连接对于理解电机启动电路很重要.
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