ABSTRACT

This study investigates whether acoustical aftereffects, analogous to the visual movement aftereffects, occur following exposure to moving sound. Subjects adapted for 2 1/2: min to a sound source rotating in either a clockwise or counterclockwise direction. Following the adaptation period, subjects were asked to localize stationary sound sources in each of five positions: straight ahead. 10° and 20° to the left and right. No motion aftereffect was observed, however, adaptation caused an average displacement of 2° opposite to the direction of rotation. The results provide evidence for direction-specific auditory mechanisms in humans.