Auditory Subjective-Straight-Ahead Blurs during Significantly Slow Passive Body Rotation

Akio Honda; Sayaka Tsunokake; Yôiti Suzuki; Shuichi Sakamoto

doi:10.1177/20416695211070616

Auditory Subjective-Straight-Ahead Blurs during Significantly Slow Passive Body Rotation

Iperception. 2022 Jan 5;13(1):20416695211070616. doi: 10.1177/20416695211070616. eCollection 2022 Jan-Feb.

Authors

Akio Honda¹, Sayaka Tsunokake², Yôiti Suzuki², Shuichi Sakamoto²

Affiliations

¹ Department of Information Design, Faculty of Informatics, Shizuoka Institute of Science and Technology, Fukuroi, Japan.
² Research Institute of Electrical Communication, Tohoku University, Sendai, Japan.

Abstract

This paper reports on the deterioration in sound-localization accuracy during listeners' head and body movements. We investigated the sound-localization accuracy during passive body rotations at speeds in the range of 0.625-5 °/s. Participants were asked to determine whether a 30-ms noise stimuli emerged relative to their subjective-straight-ahead reference. Results indicated that the sound-localization resolution degraded with passive rotation, irrespective of the rotation speed, even at speeds of 0.625 °/s.

Keywords: listener movement; multisensory integration; sound localization; spatial hearing.