Feature

Afterimages and Multiplexing

D.H. Kelly and Eugenio Martinez-Uriegas

There is much current interest in the functions of parallel pathways in vision and, in particular, the question of where and how the opponent-color and luminance signals are formed. According to several lines of evidence, chromatic and achromatic signals both share a common pathway from the retina to the brain; namely, the "sustained" or parvocellular pathway. Our recent results imply that the same multiplexing arrangement also holds for chromatic and achromatic afterimages, surely the most "sustained" phenomena in normal vision.

Publish Date: 01 December 1993