Transactions of Japan Society of Kansei Engineering
Online ISSN : 1884-5258
ISSN-L : 1884-0833

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Satisfactory Vibrating Conditions of the Latissimus Dorsi Tendon and the Perceptual Properties of Inducing Illusory Horizontal Shoulder Flexion
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Article ID: TJSKE-D-15-00068


The satisfactory vibrating conditions and the perceptual properties of inducing illusory horizontal shoulder flexion were investigated in this study. The experimental factors were the vibration frequencies of 30, 50, 70, 90, 110, and 130 Hz. We subjectively assessed the presence or absence of an illusion and its vividness on a 5-point scale. Simultaneously, the perceptual time it took for an illusion to appear and the maximum illusory angle was measured. It was found that the maximum occurrence rate of the illusion was 98% at a vibration frequency of 70, 90, 110 Hz. The illusory angle was approximately 30°. It took 7s for an illusion to appear. Based on this knowledge, we plan to develop an interface device that will provide kinesthetic sensations only without the actual motion in a future study. This device could potentially be used for tactile feedback technology in the virtual reality space.

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