Spatial processing of luminance and color information.
D000818:Animals; D002415:Cats; D003118:Color Perception; D005829:Geniculate Bodies / Q000502:physiology*; D000882:Haplorhini; D006737:Horseshoe Crabs; D006801:Humans; D008027:Light; D010786:Photoreceptor Cells / Q000502:physiology; D014793:Visual Cortex / Q000166:cytology / Q000502:physiology*; D014796:Visual Perception