8 Mind-Boggling Optical Illusions

[Allhallowsday]

8 Mind-Boggling Optical Illusions  
...What your eyes perceive when looking at one of these images is actually a visual illusion; you see the image as something different than what it is because the different cells and receptors in your eyes distinguish images and colors at dissimilar speeds. The eye can only receive a limited amount of visual stimuli, but as your brain constantly processes the visual information, it gives you the illusion of continuous sight. Whether it's an optical, physiological or cognitive illusion, the design plays a trick on your eyes (and mind). Check out some of the interesting illusions below—but beware, you may not be able to absorb them all in one sitting...

http://health.yahoo.com/featured/46/8-mind-boggling-optical-illusions/

[Jack]

As if my mind wasn't boggled enough to start with 

[Mr. DS]

Dude...trippy man. 

[trekgeezer]

Gee thanks, as if I weren't dizzy enough already.

[Jack]

Mornings when everything looked like this is why I quit drinking hard liquor: