A Different Kind of Blindness

by Christopher Paul on January 7, 2011

Watch this video. Stare at the small white dot in the center. What did you see?

At first, the ring of dots is motionless and it’s easy to tell that the dots are changing color. When the ring begins to rotate, however, the dots suddenly appear to stop changing. The faster the ring moves, the less the colours appear to change. But in reality, they were changing the whole time, at the same rate. As the video shows, the illusion also works for brightness, shape and size.

Scientists are calling it change blindness.

When you take your eye off the center white dot, you can see the color change which makes it seems as if the brain can’t really focus on certain details in its peripheral vision.

A new kind of colour blind – New Scientist via The Awl

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