Liz S (ixwin) wrote,
Liz S
ixwin

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Colour perception

I have just thought of an explanation for a phenomenon that I first observed years and years ago (like, when I was five or six or something).

When I lie in the sun with my eyes closed for any length of time, I find, on re-opening my eyes, that my colour perception is slightly skewed. In particular, my skin tends to look greyish.

It occurred to me today that this is because, when I have my eyes closed in the sun, I basically see redness as a result of the sun filtering through my eyelids. This must exhaust the red cones in my eyes, and mean that when I re-open them, I get an image with less red in it than usual - hence pinkish skin becomes greyish.
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