When the cones get over stimulated/saturated with red and green (or should I say when the red cones and green cones get over saturated/stimulated) (after being in the sun out in he garden say) and we come inside and it seems a blue hue, is it a similar nerve impulse “numbing” that we experience when we chew gum? (As in after a while the flavour wears off, but take it out, have a drink of water, then put it back in and chew it the flavour comes back)? I understand one is to protect the nerves (cone situation) am the other is to detect flavours behind overwhelming ones (mint gum), but I wonder if the impulse is blocked at the eye/olfactory, or the brain itself that actually blocks them out?