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无周期性大脑活动调节皮质脊髓刺激能力

Jingna Jin^1,2, Xin Wang^1,2, Xinyu Zhao^1,2

¹State Key Laboratory of Advanced Medical Materials and Devices, Institute of Biomedical Engineering, Tianjin Institutes of Health Science, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300192, China.

Neuroscience bulletin

|December 11, 2025

概括

大脑状态依赖的经磁刺激 (TMS) 依赖于即时的力量来调节大脑活动. 我们的研究表明,无周期性大脑活动显著影响皮质脊髓刺激能力,为优化TMS提供了洞察力.

科学领域:

神经科学是一个神经科学.
计算神经科学是一种神经科学.
大脑与计算机的接口

背景情况:

脑状态依赖的跨磁性刺激 (TMS) 是一种新的神经调节技术.
使用瞬间功率估计皮层刺激性对于精确时间的TMS至关重要.
即时功率,特别是无周期性大脑活动在皮质脊髓刺激性中的确切作用仍然不清楚.

研究的目的:

研究瞬间功率,包括周期性和非周期性成分,对皮质脊髓刺激性的影响.
评估不同功率组件和电机唤起电位 (MEP) 幅度之间的关系.
为了确定不同的TMS强度如何影响电源依赖的皮质脊髓刺激性.

主要方法:

在单脉冲TMS期间同时记录脑电图 (EEG) 和运动唤起的电位 (MEP).
在静止运动值 (RMT) 的110%和120%时,主要运动皮层的刺激.
分析总,周期和无周期功率,包括无周期指数和偏移,以评估功率依赖.

主要成果:

更高的α和β功率与更大的MEP幅度相关.
大脑活动的非周期性组成部分在皮质脊髓刺激性中发挥的作用比周期性组成部分更为关键.
皮层脊髓输出显示出在120%RMT下对功率波动的敏感性较低,而在110%RMT下则较低.

结论:

无周期性大脑活动与皮质刺激性有显著的关联.
无周期组件可以作为一个有价值的参数来完善大脑状态依赖的TMS协议.
了解功率动力学可以提高神经刺激技术的精度和有效性.

关键词:

无周期性电力是指无周期性的电力.皮层脊髓的刺激能力电脑电图 (电脑电图) 是一种脑电图.发动机唤起的潜力周期性功率的周期性功率.休息的发动机门.通过骨磁刺激来进行磁性刺激.

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