ABSTRACT
It is not well understood how the human auditory system processes the motion of horizontally moving sound sources. On the one hand, it has been suggested that there are mechanisms in the auditory system that are specifically responsive to moving targets (“motion detectors”) (Perrott, Costantino, and Ball, 1993). An alternative argument is that the perception of horizontally moving sounds does not invoke special motion mechanisms, but rather is based on an observer’s discrimination of the spatial positions and the temporal sequence associated with
atrajectory’s endpoints (the so-called “snapshot hypothesis”) (Grantham, 1986). The current experiments were designed to shed more light on this interpretive issue.
