Lateralization of Impedance Control in Dynamic Versus Static Bimanual Tasks.
Lateralization of Impedance Control in Dynamic Versus Static Bimanual Tasks.
复制标题
动态与静态双手任务中阻抗控制的偏侧化。
DOI：
10.1109/embc48229.2022.9871013
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Perez NP
中科院分区：
文献类型：
--
作者：
Perez NP
在需要双手协调的日常生活活动中，人类通常为每只手分配一个角色。任务要求如何影响此角色分配？为了解决这个问题，我们研究了健康的右手参与者如何双手操纵静态或动态虚拟对象使用手腕弯曲/伸展，同时通过交互对象的扭矩接收触觉反馈。在选定的试验中，物体强烈震动，使双手抓握不稳定。我们的研究结果表明，参与者通过增加他们的手腕共同收缩来对震动做出反应。与以前的工作不同，利手不是选择哪个手腕共同收缩以稳定物体的决定性因素。然而，每个参与者都更喜欢一只手而不是另一只手，这一选择对于静态和动态对象都是一致的。虽然角色分配似乎没有受到任务要求的影响，它可能会导致不同的运动行为所示的对象扭矩的变化。需要进一步的调查，以阐明的因素，确定在稳定的优势或非优势手的偏好。
In activities of daily living that require bimanual coordination, humans often assign a role to each hand. How do task requirements affect this role assignment? To address this question, we investigated how healthy right-handed participants bimanually manipulated a static or dynamic virtual object using wrist flexion/extension while receiving haptic feedback through the interacting object's torque. On selected trials, the object shook strongly to destabilize the bimanual grip. Our results show that participants reacted to the shaking by increasing their wrist co-contraction. Unlike in previous work, handedness was not the determining factor in choosing which wrist to co-contract to stabilize the object. However, each participant preferred to co-contract one hand over the other, a choice that was consistent for both the static and dynamic objects. While role allocation did not seem to be affected by task requirements, it may have resulted in different motor behaviours as indicated by the changes in the object torque. Further investigation is needed to elucidate the factors that determine the preference in stabilizing with either the dominant or non-dominant hand.