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自身感应在校正视觉指导运动中的作用:与对照参与者相比,无差异的个体的两只手臂的运动误差更大

Shanie A L Jayasinghe¹, Robert L Sainburg^2,3, Fabrice R Sarlegna⁴

¹Division of Physical Therapy and Rehabilitation Science, Department of Family Medicine and Community Health, University of Minnesota, Minneapolis, MN, USA. jayas045@umn.edu.

Experimental brain research

|August 7, 2024

概括

自身感知对于运动控制至关重要. 一项针对具有自感损失的个体的研究揭示了更大的运动错误,特别是在非主导手中,突出了自感在反运动反应中的作用.

科学领域:

神经科学是一个神经科学.
发动机控制器发动机控制器
感官反是一种感官反.

背景情况:

亲感,身体位置的感觉,对于运动控制至关重要.
患有自感损失的个体通常依靠视觉来补偿.
对视觉干扰的反运动反应中自身感应的特定作用仍然是研究领域.

研究的目的:

研究自身感受在反运动控制中的作用.
为了检查自身感知损失如何影响在自愿手臂运动期间对视觉干扰的反应.
为了比较一个有选择性外围脱差的个体的运动控制与健康的对照.

主要方法:

一个具有选择性外围脱差 (GL) 和年龄匹配的对照的个体执行了达到任务.
参与者移动一个看不见的手,指导一个光标,向一个可视目标.
在运动开始时引入视觉干扰 (目标或光标跳跃).

主要成果:

与对照组相比,失差 (GL) 个体的最终位置错误比对照组更大,尽管有视觉反.
在光标跳跃后,GL的左手,非主导手表现出更大的错误.
与对照者相比,自身感受性分离导致空间效率较低的运动.

结论:

自身感知反对于精确的运动控制至关重要,特别是在对视觉干扰的反应中.
运动控制表现出横向化,对非主导手的自身感知反更加依赖.
这些发现强调了自身感应对基于反的运动调整的重要贡献.

关键词:

标志符跳转跳跃的时间.大纤维感官神经病变大纤维感官神经病变自己的感知反.身体感官损失身体感官损失目标跳跃目标跳跃视觉干扰视觉干扰

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