Visual discrimination versus visuo-motor learning in interocular transfer in the fish

Abstract

The hypothesis that interocular transfer in fish occurs in passive visual discrimination (PO), but not in visuo-motor learning (VM), was tested with 19 goldfish. An opaque eye cap was fitted on one eye before traini!1g, and later shifted to the other eye for the transfer test. In the VM problem, Ss had to learn new swimming patterns according to visual cues. The fo !lowing PO problem invo lved a new pair of cues, but required the same swimming patterns. Results confirmed the hypothesis. Learning scores for each eye were comparable in the VM problem, but learning with the second eye was much faster in the PO problem. Note 1. Aided by USPHS Grant M-3372 awarded to R. W. Sperry, whom the author wishes to thank also for help with the manuscript.