The present experiment was designed to determine whether a change in direction of reaching produced by adaptation to a prism worn over 1 eye will transfer to an unexposed contralateral eye in a split-brain monkey. Ss were 3 rhesus macaques in which the optic chiasma; corpus callosum; anterior, posterior, hippocampal, and habenular commissures were sectioned. In 1 animal the quadrigeminal plate, massa intermedia, and cerebellum were also split. The new visuomotor coordination acquired with 1 eye was found to be present in the opposite eye. Hand preferences did not change as a function of which eye received the visual input. (17 ref.) (PsycINFO Database Record (c) 2006 APA, all rights reserved)