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振动触觉感觉替代物体操作:幅度调制与脉冲串频率调制。

Vibrotactile sensory substitution for object manipulation: amplitude versus pulse train frequency modulation.

机构信息

Boston University, Boston, MA 02215, USA.

出版信息

IEEE Trans Neural Syst Rehabil Eng. 2012 Jan;20(1):31-7. doi: 10.1109/TNSRE.2011.2170856. Epub 2011 Oct 13.

Abstract

Incorporating sensory feedback with prosthetic devices is now possible, but the optimal methods of providing such feedback are still unknown. The relative utility of amplitude and pulse train frequency modulated stimulation paradigms for providing vibrotactile feedback for object manipulation was assessed in 10 participants. The two approaches were studied during virtual object manipulation using a robotic interface as a function of presentation order and a simultaneous cognitive load. Despite the potential pragmatic benefits associated with pulse train frequency modulated vibrotactile stimulation, comparison of the approach with amplitude modulation indicates that amplitude modulation vibrotactile stimulation provides superior feedback for object manipulation.

摘要

现在已经可以将感觉反馈与假肢设备结合使用,但提供这种反馈的最佳方法仍不清楚。本研究评估了 10 名参与者在使用机器人界面进行虚拟物体操作时,两种振幅和脉冲串频率调制刺激模式在提供用于操纵物体的振动触觉反馈方面的相对效用,研究了这两种方法作为呈现顺序和同时认知负荷的函数。尽管脉冲串频率调制振动触觉刺激具有潜在的实际益处,但与振幅调制的比较表明,振幅调制振动触觉刺激为物体操纵提供了更好的反馈。

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