著者

山本 健太郎 崔 原齊 三浦 佳世

出版者

日本基礎心理学会

雑誌

基礎心理学研究 (ISSN:02877651)

巻号頁・発行日

vol.33, no.1, pp.9-18, 2014-09-30 (Released:2014-11-26)

参考文献数

23

被引用文献数

2

---

This study examined whether tactile information influences tactile impressions induced by visual textures. We used 22 natural images of materials (22.4°×22.4°; presentation duration of 100 ms) and asked participants to report the intensity of four types of tactile impressions described in onomatopoeias and an adjective (i.e., “zarazara” (coarsely), “tsurutsuru” (slipperily), “kasakasa” (dryly), and “komakai” (fine)) by making notations on each line-scale with check marks. We asked the participants to evaluate the visual textures during or after touching an index finger to a rotating cylinder (7.7 cm in diameter; approximately 10 rps) with regularly indented surfaces (visuo-tactile condition), and without touching the rotating cylinder (visual condition). The results revealed that, when the tactile stimulus was presented simultaneously with the visual textures, tactile impressions of them were evaluated higher in the visuo-tactile condition than in the visual condition. Particularly, three of the four tactile impressions (i.e., “zarazara”, “kasakasa”, and “komakai”) were strongly affected by the tactile stimulation. In contrast, when the tactile stimulus was presented prior to the visual textures for twenty seconds, the three impressions were evaluated lower in the visuo-tactile condition than in the visual condition, possibly resulting from a cross-modal aftereffect of adaptation to the tactile stimulus. Moreover, these effects were observed regardless of the similarity of tactile impressions between the visual and tactile stimuli. These results indicate that tactile information influences tactile impressions induced by visual textures. This effect might occur at the level of sensory processing.