Introduction: Although much is known about chromatic properties of classical receptive fields, the effect of chromatic stimuli on extraclassical suppressive surrounds is less well-understood. If extraclassical receptive fields are chromatically-tuned, neurons outside directly-stimulated regions might carry information about stimulus chromaticity. Here we show that fMRI BOLD signals in peripheral regions of V1 carry significant information about the color of a foveal stimulus.
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