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Color-specific depth mechanisms revealed by a color-contingent depth aftereffect


Models of stereoscopic depth perception for both natural and random-dot images have focused mainly on the matching of achromatic features of binocular images. Recently, a growing body of research has investigated whether chromatic features can also contribute to the construction of stereoscopic depth. Here we present experiments yielding color-contingent depth aftereffects comparable in magnitude to those measured after adaptation to achromatic stimuli as evidence of neural mechanisms tuned to both color and depth. Furthermore, we report that the locus of the combined processing of color and depth is likely to lie beyond the site of binocular matching.

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