皮层内微刺激反馈通过脑机接口提高人类抓握力的准确性。
Intracortical Microstimulation Feedback Improves Grasp Force Accuracy in a Human Using a Brain-Computer Interface.
作者信息
Quick Kristin M, Weiss Jeffrey M, Clemente Francesco, Gaunt Robert A, Collinger Jennifer L
出版信息
Annu Int Conf IEEE Eng Med Biol Soc. 2020 Jul;2020:3355-3358. doi: 10.1109/EMBC44109.2020.9175926.
Abstract
After a spinal cord injury, a person may grasp objects using a brain-computer interface (BCI) to control a robot arm. However, most BCIs do not restore somatosensory percepts that would enable someone to sense grasp force. Intracortical microstimulation (ICMS) in the somatosensory cortex can evoke tactile sensations and may therefore offer a viable solution to provide grasp force feedback. We investigated whether a bidirectional BCI could improve grasp force control over a BCI using only visual feedback. When evaluating the error of the applied force during a force matching task, we found that ICMS feedback improved overall applied grasp force accuracy.
摘要
脊髓损伤后，患者可通过脑机接口（BCI）控制机器人手臂来抓取物体。然而，大多数脑机接口无法恢复能让人感知抓握力的体感。体感皮层的皮层内微刺激（ICMS）可以诱发触觉，因此可能为提供抓握力反馈提供可行的解决方案。我们研究了双向脑机接口是否比仅使用视觉反馈的脑机接口能更好地控制抓握力。在评估力匹配任务中施加力的误差时，我们发现皮层内微刺激反馈提高了整体施加抓握力的准确性。
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