title: Opponent-process additivity--I: red-green equilibria.
mesh_terms: D000221:Adaptation, Ocular; D003118:Color Perception; D005260:Female; D005403:Fixation, Ocular; D006801:Humans; D007858:Learning; D008029:Lighting; D008297:Male; D012160:Retina / Q000502:physiology; D013057:Spectrum Analysis