The Case of the Rotating Ovals

If you talk about optical illusions, eventually the conversation will turn to the work of experimental psychologist Akiyoshi Kitaoka, which has been featured many times here at Neatorama. One of his latest illusions shows us a couple of circles made of ovals rotating counterclockwise. Which one is going faster? The one on the right, of course! (It’s only a couple of seconds long; to watch it again, click the GIF sign on the bottom left.) But when you study them individually, you realize they are rotating at the exact same speed. The right circle gives the illusion of faster movement because the parts of each oval are flashing pretty fast. Kitaoka didn’t tell us the name of this illusion, so I just made one up. -via Digg

Source: neatorama

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