A neural information processing model to illustrate the dependency of vibrotactile adaptation on the stimulated site of the human hand.

概要

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It has been shown that the degree of vibrotactile adaptation is smaller on the middle finger tip than on the palm, and that it is greater when measured with a small contactor than with a large contactor. We produced a mathematical model to illustrate these phenomena. All experimental results could be simulated with the model on the basis of the following hypotheses:(1) that the accumulated discharge density of mechanoreceptive units depended on the site of stimulation and the size of the contactor;(2) that the discharge threshold of a mechanoreceptive unit was higher in post-adaptation than in pre-adaptation;(3) that the slope of stimulus-discharge function was gentler in post-adaptation than in pre-adaptation.
公益社団法人日本心理学会の論文