4 ms·
As long as you're using 2 filters, you're only adding one dimension to the distinction, so it would remain tetrachromatic. You would be able to distinguish more
by XaspR8d 9y ago
As long as you're using 2 filters, you're only adding one dimension to the distinction, so it would remain tetrachromatic. You would be able to distinguish more metamers than the configuration in the article (hence having more utility, probably), but ultimately you're still only gaining the "channel" of your binocular discrepancy as a virtual photopigment.
- enriquto 9y agoI'm not sure I follow your argument here... it seems to me that you would be getting three independent signals on each eye, thus the perception would be effectively a 6-dimensional color space.
- XaspR8d 9y agoI guess it comes down to whether you think you can (immediately) process the "red delta", "blue delta", and "green delta" independently. I wasn't stating my assumption that I thought it would be nontrivial for your brain to identify more than the overall distance between the colors. I do agree there are technically 6 information channels; I just wasn't sure if a human could actually use it expediently. That said, I think I've come around to the idea that we could see multiple signals. I could probably identify "right-brightness" & "left-brightness" as separate from "right-desaturation" & "left-desaturation". But can I also separate those from "right-CCW-hue-rotation"? Can I pair it with "right-greenness/blueness/redness" in a way that I am gaining a full independent channel of information? Maybe it's like 2.2 channels worth. :P I guess I shouldn't speculate at all; it's easy to be misled in hypotheses about perception.