Communication and Inference of Intended Movement Direction during Human-Human Physical Interaction.
Communication and Inference of Intended Movement Direction during Human-Human Physical Interaction.
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DOI：
10.3389/fnbot.2017.00021
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发表时间：
2017
影响因子：
3.1
通讯作者：
Santello M
中科院分区：
文献类型：
--
作者：
Mojtahedi K;Whitsell B;Artemiadis P;Santello M
神经科学和机器人社区特别感兴趣的是理解两个人如何在身体上合作来执行运动任务，例如握住工具或在不同位置移动工具。当两个人在身体上相互作用时，感官结果和运动结果并不完全可预测，因为它们也取决于另一个代理的行为。物理相互作用中涉及的感觉机制还没有得到很好的理解。本研究的目的是（1）量化人与人之间的物理相互作用，其中一个代理人（“追随者”）必须推断另一个代理人（“领导者”）的预期或预期但不执行的运动方向，以及（2）揭示二元体使用的潜在策略。本研究还旨在验证视觉反馈（VF）在多大程度上是必要的沟通预期的运动方向。我们发现，领导者的控制力和运动之间的关系是一个关键因素，在传达他/她的预期运动方向的追随者，无论VF的把握手柄或武器。有趣的是，在相对较短的练习后，二分体的沟通和推断运动方向的能力得到了显著的提高（>83%）。这些结果表明，力和运动之间的关系（解释为手臂阻抗调制）可能代表了一个重要的手段，用于通信之间的生物制剂的预期运动方向，如由该关系的预期方向的调制所示。正在进行的工作是调查本研究结果的应用，以优化生物和非生物制剂之间的物理相互作用过程中的高层次运动目标的沟通。
Of particular interest to the neuroscience and robotics communities is the understanding of how two humans could physically collaborate to perform motor tasks such as holding a tool or moving it across locations. When two humans physically interact with each other, sensory consequences and motor outcomes are not entirely predictable as they also depend on the other agent’s actions. The sensory mechanisms involved in physical interactions are not well understood. The present study was designed (1) to quantify human–human physical interactions where one agent (“follower”) has to infer the intended or imagined—but not executed—direction of motion of another agent (“leader”) and (2) to reveal the underlying strategies used by the dyad. This study also aimed at verifying the extent to which visual feedback (VF) is necessary for communicating intended movement direction. We found that the control of leader on the relationship between force and motion was a critical factor in conveying his/her intended movement direction to the follower regardless of VF of the grasped handle or the arms. Interestingly, the dyad’s ability to communicate and infer movement direction with significant accuracy improved (>83%) after a relatively short amount of practice. These results indicate that the relationship between force and motion (interpreting as arm impedance modulation) may represent an important means for communicating intended movement direction between biological agents, as indicated by the modulation of this relationship to intended direction. Ongoing work is investigating the application of the present findings to optimize communication of high-level movement goals during physical interactions between biological and non-biological agents.