SACCADE LATENCY TOWARD AUDITORY TARGETS DEPENDS ON THE RELATIVE POSITION OF THE SOUND SOURCE WITH RESPECT TO THE EYES

The latency of saccadic eye movements evoked by the presentation of au ditory and visual targets was studied while starting eye position was either 0 or 20 deg right, or 20 deg left. The results show that for an y starting position the latency of visually elicited saccades increase s with target eccentricity with respect to the eyes. For auditory elic ited saccades and for any starting position the latency decreases with target eccentricity with respect to the eyes. Therefore auditory late ncy depends on a retinotopic motor error, as in the case of visual tar get presentation.