What does post-adaptation color appearance reveal about cortical color representation?

J.J. Atick, Zhaoping Li, and A. N. Redlich

We examine the implications of the hypothesis that color information in the cortex is adaptively coded into a factorial (statistically independent) and gain-controlled representation. We show that this hypothesis explains the results of the recent experiments by Webster and Mollon on changes in color appearance following post-receptoral adaptation. We also give a neural network with a deterministically convergent, unsupervised learning algorithm that reproduces the adaptation observed.

Published in Vision Research vol. 33, no.1, p123-129, 1993

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