Schematics of Color Space, the Ventral Visual Stream, and Visual Stimulus Sets (IMAGE)
Caption
A. Visible wavelengths of electromagnetic radiation are not intrinsically colored. Cone cells in the retina can convert spectral information into neural signals, and these signals are further processed by the visual brain to ultimately create color perception. How color signals are processed through serial cortical stages is poorly understood; B. By applying multiple techniques, researchers charted and analyzed hue maps across three successive cortical areas - V1, V2 and V4; C. This comparative sudy reveals the brain's hue-maps develop hierarchically from cone-activation signals to isotropic hue representation, better reflecting the perceptual color space.
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