Not quite; my point in the linked comment is not about neural encoding, but about functional asymmetry—perception of red and perception of green have different functional properties, in humans. (Of course this does also imply differences in neurobiological implementation details, but we need not concern ourselves with that.)
(For instance, the perceptual (photometric) lightness of red is considerably lower than the perceptual lightness of green at a given equal level of actual (radiometric) lightness. This is an inherent part of the perceptual experience of those colors. If “my red were your green”, then, if presented with two color fields, one of rgb(255,0,0) and one of rgb(0,255,0), and asked to point to the one that looked lighter, we would answer differently—a clear behavioral difference.)
Said Achmiz argues here that (if I’m understanding correctly) they are indeed encoded differently.
Not quite; my point in the linked comment is not about neural encoding, but about functional asymmetry—perception of red and perception of green have different functional properties, in humans. (Of course this does also imply differences in neurobiological implementation details, but we need not concern ourselves with that.)
(For instance, the perceptual (photometric) lightness of red is considerably lower than the perceptual lightness of green at a given equal level of actual (radiometric) lightness. This is an inherent part of the perceptual experience of those colors. If “my red were your green”, then, if presented with two color fields, one of rgb(255,0,0) and one of rgb(0,255,0), and asked to point to the one that looked lighter, we would answer differently—a clear behavioral difference.)