Surround Effects Affecting Roughness in Tactile Perception

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  • Arai Kan
    Graduate School of Environment and Information Sciences, Yokohama National University
  • Okajima Katsunori
    Research Institute of Environment and Information Sciences, Yokohama National University

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  • ヒューマンインフォメーション　　粗さ触知覚における両側刺激の影響
  • 粗さ触知覚における両側刺激の影響
  • アラサ ショクチカク ニ オケル リョウガワ シゲキ ノ エイキョウ

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Abstract

To investigate the effects of adjacent stimuli on roughness perception and human uniformity of feeling, the magnitude of perceptual roughness on the middle finger was measured under several conditions in which different roughness stimuli on the index and ring fingers were presented. The magnitude of the roughness perceived on the middle finger depended on the stimuli on the adjacent fingers. We describe a multiple roughness perception model with an averaging mechanism for tactile sensation of the fingers. In addition, we found that uniform visual stimulus enhanced tactile uniformity.

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