动态指自身感知:使用新型机器人任务量化
Luis Garcia-Fernandez1, Andria J Farrens1, Christopher A Johnson1
1University of California Irvine, Irvine, CA 92617 USA.
Research square
|July 18, 2025
概括
动态指自身感知不如食指那么准确. 参与者适应视觉反,表示以身体为中心的参考框架来定位指运动.
科学领域:
- 神经科学是一个神经科学.
- 人类运动控制人体运动控制
- 生物力学 生物力学
背景情况:
- 大指在手部功能中的关键作用是众所周知的.
- 指的自身感知能力,特别是在动态运动中,还没有完全被理解.
研究的目的:
- 量化动态指定位能力在没有损害的个人.
- 研究用于指亲感的参考框架,并将其与食指进行比较.
主要方法:
- 一个新的机器人任务测量了动态指定位精度.
- 改变了指的速度,旋转直径,并引入了视觉干扰.
- 将指和食指的本地化性能进行比较.
主要成果:
- 大指定位误差平均为~25°,不受速度或直径的影响.
- 对旋转扰动的适应表明了一个以身体为中心的参考框架.
- 指定位错误明显大于食指 (p = 0.02).
结论:
- 动态指定位的准确性不如食指那么高.
- 大指利用视觉反和以身体为中心的框架来适应运动.
- 大指和食指的自身感知能力是相关的,但却是不同的.
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