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Humans can distinguish between objects of different hardness by tapping on their surfaces. The frequency and amplitude of the damped natural vibration caused by tapping are known to be cues for the perception of hardness. However, the relationship between them has yet to be entirely understood. We performed a psychophysical experiment using the method of adjustment, wherein participants adjusted the...
Humans can judge the hardness of an object by tapping its surface using a fingertip. The damped natural vibration caused by tapping is a vibrotactile cue for hardness perception. We investigated how dynamic characteristics of an object or vibration influence the hardness perceived by tapping. Using multivariate analyses, the subjectively reported hardness was linked with the dynamic stiffness of an...
Humans can perceive the hardness of an object from the damped natural vibration produced by tapping its surface. This damped natural vibration can be used in hap tic rendering to effectively present a sense of the hardness of an object. Although its frequency is known to influence the subjective hardness, the effects of the viscosity or decay rate have yet to be studied. We researched the contributions...
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