Abstract--Data concerning the possible role of a corollary discharge mechanism in the regulation of visual-oculomotor interactions are reviewed. Several modes of action for such a mechanism on the processing of visual information are discussed. Mere suppression of visual input during saccades is considered mostly as a peripheral mechanism. It is proposed that corollary discharge could either produce an active cancellation of the effects of eye movements on vision, or contribute to the evaluation that a given visual change is provoked by a saccade. Cancellation could occur at subcortical levels of visual processing although evaluation could occur at the cortical level.

This report describes research done within the Artificial Intelligence Laboratory and the Cen,er for Biological Irfforma'iion Frocessing (Whitaker College) at the Massachusetts Institute of Techno!ogy. The Center's support is provided in part by the SIon Foundation and in part by the Whitaker College