May 16, 2012 11:19 AM Subscribe
posted by brenton (24 comments total)
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Did you know that the blind can see
? And that's not even the most interesting part.
Did you know the sighted can see what they can't
see? We have receptors for light
(mostly blue) that bypass our consciousness and route deep into our brains (mostly the thalamus). And this 'second sight' has a hand in what we experience every day, from eye-dilation to migranes, and, significantly, the brain’s sleep circuitry
and the body's circadian rhythms.