Originally posted by Parallax When you stare at an object long enough, particularly emitted as opposed to reflected light, you will se the polar opposite of that color when you close your eyes or turn the lights out or look at something black. The picture in the link is an animated gif and there may be a b&w negative of the image or a solid blak frame inserted just before the final b&w frame. For a brief period you perceive tan (the opposite of blue on a color wheel) walls when the blue is removed. That's my theory.
I just checked, and there's not solid black frame. Though I guess your theory explains the effect anyhow.