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Message: <blockquote data-quote="cwhs01" data-source="post: 2696695" data-attributes="member: 18388">It's pressumably also something to do with how the brain interprets data sent from the eye. I think current theory about how visual data is interpreted into images in the brain, is that the brain cheats a little when it can get away with it. That is, it uses old knowledge about what an image should look like to construct a new one from optic input. So if your brain is sure that the screen infront of you had a lot of blank stuff on it a moment ago, chances are it's blank now as well. Untill your eye tells the brain something else that is. This coupled with cones in the eye, being exhausted by staring at the same spot continously, could presumably give the result we see. or don't see. yeah i know i'm quoting from memory without any links to relevant authorities on the subject, but so are everyone else... Someone scan medline or some other source and find me a better explanation.btw is this how the invisibility spell works, forcing everyone to look at you without blinking?</blockquote>