研究重复性跨脑磁刺激诱导的中风中半球间变化:一个跨脑磁刺激和fNIRS研究
Siqi Yang1,2,3, Yaomei Li2, Fen Zhang4
1Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Department of Rehabilitation Medicine, Shanghai, China.
Neurophotonics
|February 12, 2026
概括
低频重复性横磁性刺激 (rTMS) 通过减少半球间抑制和不适应性连接性,改善了中风后的运动恢复. 这种神经调节方法为个性化中风康复策略提供了潜力.
科学领域:
- 神经科学是一个神经科学.
- 康复医学 康复医学 康复医学
- 生物医学工程 生物医学工程
背景情况:
- 脑中风后的半球间不平衡会阻碍运动恢复.
- 重复性横磁刺激 (rTMS) 显示出治疗前景,但其用于中风康复的神经机制尚未完全理解.
- 优化个性化神经调节需要了解rTMS对皮质刺激性和半球间相互作用的影响.
研究的目的:
- 研究低频rTMS如何影响中风患者的运动恢复.
- 检查rTMS对半球间抑制 (IHI),功能连接性和皮层刺激性的影响.
- 为了将神经生理学变化与行为运动结果相关联.
主要方法:
- 这是一项随机对照试验,涉及27名中风患者,他们接受了真实或虚假的1 HzrTMS在缩性初级运动皮层 (M1) 上两周.
- 配对脉冲TMS用于评估IHI和横向率 (LQ).
- 功能近红外光谱 (fNIRS) 测量了静止状态功能连接 (RSFC),并补充了临床运动评估.
主要成果:
- 真正的rTMS显著降低了抑制驱动力,从收缩的M1转移到收缩的M1 (降低IHI).
- 休息状态功能连接性分析显示,从缩M1到缩前运动和补充运动区域的连接性下降.
- 与假装组相比,rTMS组在LQ和上肢运动功能方面表现出更大的改善,神经生理学变化与运动收益相关.
结论:
- 低频rTMS通过重新平衡皮层刺激性和减轻不适应性连接性来促进中风后的运动恢复.
- 综合使用TMS和fNIRS提供了RTMS诱导的皮质可塑性的证据.
- 这些发现突显了综合神经成像和神经调节工具在个性化中风康复方面的潜力.
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