>>12274491cones have a spectral response that peaks at what we label as red, green, and blue, but the response overlap to a non-trivial degree.
have you have ever heard of imaginary colors? the idea is that since red and green cones respond to (say) green light, it is impossible to only stimulate the green cones without stimulating the red cones. however, if you wear out your red cones by staring at a red scene, and then switch to a green scene, then you can almost only stimulate the green cones, giving the sensation of a green greener than green
you can fatigue the red cones by staring at a red
