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corner top left New Optical Illusions Gallery  
 by Gianni Sarcone and Marie Waeber  
   

You can browse throughout the gallery by clicking the navigation arrows or any page number. If you are interested in licensing or syndicating our intriguing perception and optical illusion contents, you will find all usefull info here.
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66-Pinna_rotating_psycho Illusory rotations

Illusory rotating effect (#66)

Some regular concentric objects appear to rotate when we approach or move back from them. Move your head backwards and forwards keeping the focus on the central cross of the image, the 3 circular sets will counter-rotate!

This illusion, also called Pinna-Brelstaf rotating illusion, is induced by bad integration of motion signals.



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You can use the image above in your non-commercial web page for free as long as you leave the copyright and author's info intact and link to us. You will find here more information regarding the reproduction and licensing rights.

The Authors
Gianni A. Sarcone and Marie J. Waeber, designers and writers, are specialists in creative learning. They create and invent educational manipulatives and thinking games which help teach mathematics, visual and plastic arts. Their maxim is: “be curious first!”. In 2018, they won the prestigious Royal Society's Young People's Book Prize (click here to get more info about the authors).

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