Evaluation of Susceptibility to Periodic and Non-periodic Stimuli for Haptic Information Presentation

• Published in: Baiomekanizumu Gakkai shi Vol. 46; no. 2; pp. 89 - 94
• Main Authors: ASAKAWA, Takashi, KINOSHITA, Kaoru
• Format: Journal Article
• Language: English; Japanese
• Published: Tokyo Society of Biomechanisms 2022; Society of Biomechanisms Japan
• Subjects: Biofeedback; Cognitive ability; EMG measurement; Feedback; Haptic interface; Home rehabilitation; Music performance support system; Reaction time task; Rehabilitation; Sensation; Tactile stimuli
• ISSN: 0285-0885
• DOI: 10.3951/sobim.46.2_89

We are studying a music performance support system for visually impaired person and a small EMG measuring instrument with a biofeedback function for home rehabilitation as a method of providing information using tactile sensation. A haptic interface device is used to provide information, however it must be attached to a part that does not interfere with music performance or rehabilitation. Therefore, in the paper, we verified the susceptibility to vibration stimuli in the parts that are expected to be attached. As a method of providing information by tactile sense, there are periodic stimuli such as music and non-periodic stimuli such as rehabilitation. The sensitivities of the two were significantly different, and in the former, the cognitive-psychological prediction had a large effect, with an average reaction time of -4 ms for all parts to the stimulus and a difference of 29 ms between parts. The latter was a physiological reaction, with an average reaction time of 241 ms for all sites and a difference of 50 ms between sites. As the result, it was clarified that it is necessary to consider whether or not the timing of stimulation can be predicted when selecting the attachment site of the tactile interface device.