Visual Perception Modulated By Galvanic Vestibular Stimulation

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  • 前庭感覚電気刺激による視覚への影響(「ウェアラブル・ユビキタス技術」特集)
  • 前庭感覚電気刺激による視覚への影響
  • ゼンテイ カンカク デンキ シゲキ ニ ヨル シカク エ ノ エイキョウ

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Abstract

Galvanic vestibular stimulation (GVS) induces a sensation of virtual acceleration as vestibular information. GVS is expected as a wearable interface because it does not need a large device like a motion platform. In particular, GVS with alternating current (AC) can influence vision which mainly consists of torsional component. The purpose of this research was to evaluate quantitatively the effects of GVS on visual perception, and to infer its cause. In order to investigate these issues, we conducted psychophysical experiments during GVS with AC that consisted of three different types of image presentation method: Image fixed on a spatial coordinate system, a head coordinate system and a retina coordinate system. It is suggested that the visual motion perception induced by GVS is mediated by eye movements.

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