E. Castaldi, F. Frijia, D. Montanaro, M. Tosetti and M. C. Morrone BOLD human responses to chromatic spatial features European Journal of Neuroscience 38
To study the selectivity of the human visual system to spatial phase, we measured the BOLD response to modulation of luminance and chromatic stimuli differing only in phase spectra: highly congruent or random. Strong phase selectivity was observed for both luminance and color stimuli, along both dorsal and ventral pathways. V1 showed a balanced response to all stimuli, suggesting the existence of equal number of even- and odd- chromatic receptive fields.
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