Evaluation of Tactile Feedback Methods for Wrist Rotation Guidance

PROJECT TITLE :

Evaluation of Tactile Feedback Methods for Wrist Rotation Guidance

ABSTRACT :

Tactile motion guidance systems aim to direct the user's movement toward a target pose or trajectory by delivering tactile cues through light-weight wearable actuators. This study evaluates ten kinds of tactile feedback for steerage of wrist rotation to perceive the traits that influence the effectiveness of such systems. We have a tendency to gift 5 wearable actuators capable of tapping, dragging across, squeezing, twisting, or vibrating against the user's wrist; every actuator can be controlled via steady or pulsing drive algorithms. 10 subjects used every kind of feedback to perform three unsighted movement tasks: directional response, position targeting, and trajectory following. The results show that directional responses are fastest when direction is conveyed through the situation of the tactile stimulus or steady lateral skin stretch. Feedback that clearly conveys movement direction allows subjects to succeed in target positions most quickly, though tactile magnitude cues (steady intensity and particularly pulsing frequency) will additionally be used when direction is difficult to discern. Subjects closely tracked arbitrary trajectories solely when both movement direction and cue magnitude were subjectively rated as terribly simple to discern. The most effective overall performance was achieved by the actuator that repeatedly faucets on the topic's wrist on the facet toward that they ought to flip.

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