著者

青山 一真 安藤 英由樹 櫻井 悟 宮本 靖久 古川 正紘 前田 太郎

出版者

特定非営利活動法人 日本バーチャルリアリティ学会

雑誌

日本バーチャルリアリティ学会論文誌 (ISSN:1344011X)

巻号頁・発行日

vol.20, no.3, pp.219-228, 2015-09-30 (Released:2017-02-01)

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Galvanic Vestibular Stimulation (GVS) can present left/right, front/back and left/right yaw acceleration sensation. It is known that the acceleration is produced towards anode from cathode. However, presenting superior-inferior directional acceleration sensation is not reported. It seems that current path in the head is not well understood and that gravity acceleration masks the perception of weak acceleration sensation even though it evoked superior-inferior acceleration within the GVS safety guideline. Therefore, we invented the stimulation method that can make subjects feel inferior-superior acceleration sensation within the safety guideline by applying inferior-superior direction countercurrent that can present strong inferior-superior directional acceleration sensation passing through the holes of temporal bone. The effects of inferior-posterior directional countercurrent were investigated by measuring subjective acceleration perception and body sway.

著者

青山 一真 櫻井 健太 古川 正紘 前田 太郎 安藤 英由樹

出版者

特定非営利活動法人 日本バーチャルリアリティ学会

雑誌

日本バーチャルリアリティ学会論文誌 (ISSN:1344011X)

巻号頁・発行日

vol.22, no.2, pp.137-143, 2017 (Released:2017-06-30)

参考文献数

13

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Galvanic Tongue Stimulation (GTS) is the technique that can induce electrical taste or metallic taste virtually and inhibit and enhance taste induced by water solution. This technique is expected to use for diet support device. However, conventional GTS required to attached electrodes in the mouth. It causes uncomfortable to use for the purpose. Therefore, we invented Galvanic Jaw Stimulation (GJS) which induces and modulates taste without electrodes in mouth. In this paper, we demonstrated whether GJS can induce virtual taste and modulate salty taste induced by NaCl water solution.

著者

青山 一真 安藤 英由樹 飯塚 博幸 前田 太郎

出版者

特定非営利活動法人 日本バーチャルリアリティ学会

雑誌

日本バーチャルリアリティ学会論文誌 (ISSN:1344011X)

巻号頁・発行日

vol.19, no.3, pp.315-318, 2014

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In this work, we researched the human perceptual attribution for acceleration sensation evoked by Galvanic Vestibular Stimulation (GVS) and validated the enhancement effect of countercurrent using the dead current strength. In the results of experiments, we searched that the current threshold is 0.3 - 0.4mA by measuring the rate of correct directional perception. To validate the enhancement effect of countercurrent, we compared the rate of correct perception in long and short countercurrent and constant current. In the result, the rate of correct directional perception in long countercurrent is significantly higher than that of constant current in the dead current value.