惯性负荷在运动皮层中的输出-零签名
Eric A Kirk1, Keenan T Hope1, Samuel J Sober2
1CaseWestern Reserve University School ofMedicine, Department of Neurosciences.
bioRxiv : the preprint server for biology
|November 21, 2023
概括
运动皮质在肢体负荷变化的运动过程中表现出显著的动态变化,这表明它在将自愿运动与脊柱节律集成方面发挥了作用.
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
- 系统神经科学 系统神经科学
背景情况:
- 神经系统必须调整动力输出以适应变化的机械负荷.
- 运动皮质对于自愿运动和负载补偿至关重要.
- 在移动过程中皮层控制和脊髓节律生成之间的相互作用尚未完全理解.
研究的目的:
- 为了研究运动皮质在节奏性,旋转性运动中的负载补偿中的作用.
- 了解皮层动力学是如何改变,以应对移动过程中改变的机械负荷.
主要方法:
- 前肢质量在不受约束的小鼠中在运动过程中被操纵.
- 记录了电机输出和皮质动态.
- 评估了运动皮层无活化和小脑干扰的影响.
主要成果:
- 变化的肢体负荷导致了独立于运动皮层的运动输出变化.
- 负载诱导的变化显著转移皮质动态,比小脑扰动更为如此.
- 皮层动态变化比脊柱运动神经元中观察到的变化要大.
结论:
- 运动皮质在移动过程中表现出机械负荷的潜伏表现.
- 这种皮层表现可能有助于将自愿命令与正在进行的脊柱节奏相结合.
- 运动皮质在适应和预测节奏运动期间机械负荷的变化方面发挥着作用.
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