Tactile Apparent Motion on Seat Pan Modulates Perceived Forward Velocity of Self-Motion

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  • 座面上の触仮現運動が及ぼす視覚誘導性自己運動感覚の速度知覚変化(<特集>クロスモーダル/マルチモーダル)
  • 座面上の触仮現運動が及ぼす視覚誘導性自己運動感覚の速度知覚変化
  • ザメン ジョウ ノ ショクカリ ゲン ウンドウ ガ オヨボス シカク ユウドウセイ ジコ ウンドウ カンカク ノ ソクド チカク ヘンカ

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We conducted a user study to clarify whether a tactile flow created by a matrix of vibrators in a seat pan simultaneously presented with an optical flow in peripheral vision enhances the perceived forward velocity of self-motion. A brief tactile motion stimulus consisted of four successive rows of vibration, and the inter-stimulus onset between the tactile rows was varied to change the velocity of the tactile motion. The experimental results show that the forward velocity of self-motion is significantly overestimated for rapid tactile flows and underestimated for slow, compared with only optical flow or non-motion vibrotactile stimulation conditions. Furthermore, we examined a perceptual change in the forward velocity by the tactile flow on the seat pan applied in a car-racing computer game.

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