光点とランダムドットパタンの運動に誘導される聴覚運動(<特集>VR空間における心理学)

概要

論文の詳細を見る
The effect of moving visual stimuli on the perceived direction of moving sound was measured to investigate whether the visual motion induces motion sensation of static sound. The dynamic interaural time difference (ITD) was used as the cue for sound motion, and the effect of two types of moving visual stimuli (single point-light and random-dot patterm) on the dynamic ITD was examined. As a result, the induced motion sensation of static sound whose magnitude was dependent on the type of visual stimuli was obtained. With point light stimulus (1-deg disk), sound with static ITD moved to the same direction as that of moving visual stimulus. With 90-deg spreaded random-dot pattern, however, motion sensation of sound with static ITD was not obtained. These results suggest that the motion sensation of sound is calculated taking account of the information of visual motion and that the inference of causality between visual informantion and auditory information (1-deg disk was interpreted as a sound source, however, random-dot pattern was not) might underlie the calculation.
2001-03-31