之前的不确定性阻碍了离散的运动器适应
Aojun Jiang1, Francis M Grover2, Mary Bucklin1
1Department of Biomedical Engineering, Northwestern University, Evanston, IL, United States of America.
PloS one
|February 16, 2024
概括
由于不可预测的平衡扰乱,环境的不确定性阻碍了感觉运动适应. 暴露于不确定性的参与者表现出对一致的力场的适应能力受损,影响了运动稳定性和学习.
科学领域:
- 神经科学是一个神经科学.
- 生物力学 生物力学
- 发动机控制器的控制器
背景情况:
- 环境不确定性对运动器适应性的影响尚不清楚.
- 不确定性可以通过改变运动控制策略来帮助或阻碍运动学习.
研究的目的:
- 调查不可预测的环境不确定性如何影响适应一致的力场.
- 为了比较暴露于干扰的参与者与对照组的运动运动适应.
主要方法:
- 参与者在经历了不可预测的平衡干扰后适应了机器人力场.
- 评估质量中心 (COM) 轨迹,预期的姿势调整 (COM横向偏移) 和步骤宽度.
- 将扰乱组与无扰乱对照组进行了比较.
主要成果:
- 扰动组在进入力场时,在COM轨道上显示出更大的初始扰动.
- 只有非扰乱组完全调整了他们的COM轨迹到基线水平.
- 扰动组在COM横向偏移和步骤宽度方面表现出适应能力受损.
结论:
- 暴露于不可预测的干扰阻碍了随后的传感运动适应一致的环境需求.
- 无法预测的环境不确定性会对学习和适应运动的能力产生负面影响.
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