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在单边运动准备和序列学习期间的双边皮层内抑制

R Hamel¹, B M Waltzing², M R Hinder³

¹School of Sports, Exercise, and Rehabilitation Sciences, University of Birmingham, Birmingham, B15 2TT, United Kingdom; School of Psychology and Centre for Human Brain Health, University of Birmingham, Birmingham, B15 2TT, United Kingdom.

Brain stimulation

|March 13, 2024

概括

序列学习通过改变大脑两半球的短内皮层抑制 (SICI) 来改变运动准备. 起初,准备双边降低SICI,但学习导致对立SICI转移在对侧和对侧运动皮层.

科学领域:

神经科学是一个神经科学.
发动机控制器的控制器
运动学习是指运动学习.

背景情况:

运动序列学习提高了反应时间,表明了改变的运动准备.
准备运动减少了运动皮层中的短内皮层抑制 (SICI) (M1).
序列学习对对侧向和侧向M1s的运动准备有影响.

研究的目的:

调查序列学习是否会在双边M1s的运动准备过程中改变SICI变化.
测试单边序列制备是否降低双边M1s中的SICI.
为了确定序列学习是否会改变双边SICI响应.

主要方法:

配对脉冲横磁刺激 (TMS) 在食指肌肉中评估了SICI.
通过对外和对外M1s交付了TMS.
参与者准备了由食指或小指开始的序列.

主要成果:

在没有学习的情况下,SICI在序列准备期间双边下降.
随着序列学习,SICI在逆向M1下降,但在逆向M1.1上升.
这些双边SICI变化发生在运动准备开始时.

结论:

双边SICI反应反映了在运动准备期间急性抑制下降.
序列学习诱导M1半球的基线SICI水平的双向转移.
运动准备包括SICI的即时抑制调节和长期适应性变化.

关键词:

皮层脊髓刺激能力 (CSE)皮层内抑制 (ICI) 是指皮层内抑制.发动机准备工作发动机准备工作运动序列学习学习双脉冲跨脑磁性刺激 (ppTMS) 是一种短时间内皮层抑制 (SICI)

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