学习与感觉运动延迟站立是跨方向和从手到腿的效应者普遍存在的
Brandon G Rasman1,2,3, Jean-Sébastien Blouin4,5,6, Amin M Nasrabadi4
1Department of Neuroscience, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands.
Communications biology
|March 30, 2024
概括
人类可以通过减少运动变化来学习保持平衡,尽管有感官延迟. 这种学到的平衡控制可以通用到新的方向,甚至在四肢之间进行转移,显示出广泛的神经更新,以适应延迟的感觉反.
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
- 机器人技术 机器人技术 机器人技术
背景情况:
- 人类运动控制需要整合感官信息,这可能会有延迟.
- 这些延迟在身体和一生中各不相同,需要适应的平衡策略.
- 在不同环境中对学习的运动技能进行概括对于有效的适应至关重要.
研究的目的:
- 调查人类是否可以学会平衡强加的感官延迟.
- 确定平衡改善是否对未经训练的方向和环境进行概括.
- 探索在平衡过程中适应延迟感官反的神经机制.
主要方法:
- 使用机器人模拟器在直立站立的任务中引入受控的感觉延迟.
- 评估参与者通过修改电机输出可变性来重新学习平衡控制的能力.
- 测试学到的平衡技能的转移到未经训练的方向和不同的效应器 (例如,手与腿).
主要成果:
- 参与者最初因延迟而变得不稳定,但通过减少运动动作的变化来重新学会平衡.
- 平衡的改善成功地转移到未经训练的站立方向.
- 学习平衡与延迟使用手移动平衡训练与腿.
- 观察到学习的后果,但在正常情况下不会破坏平衡.
结论:
- 人类可以有效地学会在平衡任务中补偿感官延迟.
- 大脑广泛更新神经控制策略,以适应延迟的感官反.
- 学习的平衡控制在不同的方向和效应者中得到了普遍化,突出了人类运动系统的适应性.
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