Two distinct mechanisms mediating interocular transfer in the goldfish (Carassius auratus)?

It is known that the postoptic commissures mediate the interocular transfer of visual discriminations in fish. Our experiments demonstrated that information relating to shape crosses in one of these commissures, the horizontal, whereas a completely separate commissure, the minor, mediates the transfer of information relating to color. Such a clear distinction provides a valuable model for the further study of interhemispheric phenomena.