Chromatic aberration and the roles of double-opponent and color-luminance neurons in color vision

How does the visual cortex encode color? I summarize a theory in which cortical double-opponent color neurons perform a role in color constancy and a complementary set of color-luminance neurons function to selectively correct for color fringes induced by chromatic aberration in the eye. The theory may help to resolve an ongoing debate concerning the functional properties of cortical receptive fields involved in color coding. (c) 2006 Elsevier Ltd. All rights reserved.