运动皮层在运动图像过程中保留并重新定位神经动力学
Brian M Dekleva1,2,3, Raeed H Chowdhury3,4, Aaron P Batista3,4
1Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, PA, USA.
Nature human behaviour
|January 29, 2024
概括
在想象的动作过程中,运动皮层的激活与实际执行不同. 神经活动分为共享和独特的子空间,表明运动图像重新定位与输出相关的组件.
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
- 大脑活动大脑活动
背景情况:
- 运动皮质在运动执行和运动图像过程中都是活跃的.
- 了解区分这些状态的神经动态仍然是一个挑战.
研究的目的:
- 为了研究实际与想象中的运动期间,运动皮质中的人口活动模式和时间动态.
- 为了比较运动执行和隐藏运动图像的神经表现.
主要方法:
- 脊髓损伤后残留手腕功能的人的运动皮层内皮层记录.
- 在执行实际和想象中的同度腕延伸时分析神经活动.
主要成果:
- 运动皮层人口活动分解成三个直角子空间.
- 一个子空间在执行和图像过程中都是活跃的,而两个是特定任务的 (动作独特和图像独特).
- 独特的动作和独特的图像子空间表现出相似的动态特征,尽管它们占据了不同的神经维度.
结论:
- 运动皮层在图像和执行过程中保持着类似的人口动态.
- 电机图像涉及将电机输出和/或反组件重新定向到输出零子空间.
- 这种神经重定位允许在没有实际电机输出的情况下进行想象的运动.
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