title: Test of the identity of the site of blue/yellow hue cancellation and the site of chromatic antagonism in the pi 1 pathway.
mesh_terms: D003118:Color Perception / Q000502:physiology*; D006801:Humans; D008297:Male; D009433:Neural Inhibition; D012684:Sensory Thresholds / Q000502:physiology*; D013053:Spectrophotometry; D014795:Visual Pathways / Q000502:physiology*