唤起触觉的脑电脑接口改善了机器人手臂的控制
Sharlene N Flesher1,2,3, John E Downey1,2,3,4, Jeffrey M Weiss1,5
1Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, PA, USA.
概括
通过增加触觉反, 增强四肢患者的假肢控制. 这样可以提高掌握力,缩短任务时间,模仿自然生物控制,
科学领域:
- 神经科学
- 生物医学工程
- 康复机器人
背景情况:
- 通过脑电脑接口 (BCI) 控制的假肢可以恢复四肢患者的功能.
- 仅仅视觉反不足以有效地抓住物体,强调需要触摸感官信息.
研究的目的:
- 通过触觉感知来补充视觉反对四肢患者机器人肢体性能的影响.
- 评估通过双向BCI整合触觉能否改善功能任务完成时间.
主要方法:
- 使用双向BCI记录运动皮层活动并通过体感皮层微刺激传递触觉感觉.
- 该系统在机器人肢体操作过程中补充了视觉反和人工触觉感知.
- 使用标准的临床上肢评估来评估性能.
主要成果:
- 参与者表现出机器人肢体的性能大幅提高, 试验时间显著减少.
- 上肢评估的中位时间减少了一半,从20. 9秒减少到10. 2秒.
- 更快的任务完成主要归因于减少了对象抓取尝试的时间.
结论:
- 通过双向BCI补充视觉反可显著增强四肢患者的机器人四肢控制.
- 在假肢控制中模仿感官反的生物原理,
- 这种方法代表了重症运动障碍患者恢复功能独立性的有希望的进展.
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