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外侧斜肌的ipsilateral和contralateral皮质控制,由TMS揭示出来

Ryoji Miyano¹, Yuichiro Shirota², Satoshi Kodama³

¹Department of Neurology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.

Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology

|November 6, 2025

概括

这项研究揭示了干部肌肉的明显皮质控制,表明两侧运动路径在生理上不同于两侧运动路径. 这些发现突出了外侧斜肌运动控制的独特方面.

科学领域:

神经科学是一个神经科学.
运动控制研究运动控制研究
人体生理学人体生理学

背景情况:

跨磁刺激 (TMS) 是研究人类运动功能的关键工具.
了解干部肌肉的皮质控制对于各种神经学和康复应用至关重要.

研究的目的:

为了研究干部肌肉的逆侧和逆侧皮层控制的差异.
为了比较通过对侧和侧侧刺激引起的外斜肌的运动唤起潜力 (MEP).

主要方法:

20名健康的参与者 (10名年轻人,10名老年人) 接受了TMS,以确定对侧和侧侧皮层的"热点".
在年轻的成年人中,TMS线圈的方向有所变化 (八个位置,间隔45°),以测量活跃运动值 (AMT) 和发病延迟.
分析的重点是来自外部斜肌引起的MEP.

主要成果:

反边欧洲议会议员一直得到;在70%的参与者中检测到ipsilateral欧洲议会议员 (14/20).
双侧热点位于较侧面的位置 (p < 0.05).
最佳的线圈方向 (反中介电流) 降低了两个路径的延迟和AMT,但对侧MEP显示AMT显著降低,发病延迟更短 (p <0.05).

结论:

控制外斜肌的ipsilateral运动通道与对侧运动通道相比,具有独特的生理特征.
这些结果表明,干部肌肉的不同皮层控制机制,支持进一步研究双侧运动控制.

关键词:

卷轴的方向卷轴的方向外侧斜肌是外侧的斜肌.热点热点的地方双侧电机唤起了潜在的潜力.发动机值发动机值启动延迟时间启动延迟时间通过骨磁刺激来进行磁性刺激.

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