Troxler Effect image
October 24, 2010 9:47 pm
Take a look at this. Focus on the “+” in the middle, and describe what you see.
Troxler Effect image
No, the purple dots don’t disappear, though that’s probably what you “see.” Worse, there’s no green dot. Your brain sees green when the purple disappears — and even when your brain refuses to let you know the purple dots are still there, it will tell you you see a green dot when the purple dots you can’t see, disappear.
So, is it so hard to understand that people might see weird things in the mirror, if they stare at their own faces for a while?
Cortical Hemming and Hawing has the full story, with a history of the Bloody Mary story. Go see.
Posted by Ed Darrell
Categories: Brain development, Brain learning, psychology, Urban Legend
Tags: Bloody Mary, Brain Science, Hemming and Hawing, Optical Illusions, psychology, Troxler Effect, urban legends
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I see the Mother of God.
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By mark on October 25, 2010 at 12:23 pm
Here’s a great optical illusion involving curve balls in baseball.
http://illusioncontest.neuralcorrelate.com/2009/the-break-of-the-curveball/
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By Mark F. on October 25, 2010 at 11:46 am
What green dot? All I see is grilled cheese sandwich.
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By rayjs on October 25, 2010 at 12:28 am