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Revolving Circles |
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Keep your eyes focused on the black dot in the middle, then move your head toward the screen and away from the screen. Does anything move? Explanation Although this illusion is not completely understood, it is most likely due to special properties of low level mechanisms for the processing of visual contours. Italian vision scientists B. Pinna and G. Grelstaff discovered the Revolving Circles illusion in 1999. |
