Unfolding Spirals Illusion


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Unfolding Spirals illusion

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Copyright © 1996-2017 Alexander Bogomolny

Unfolding Spirals Illusion

Several effects could be observed depending on the specific values of the available parameters. Spirals may appear to interlock, concentric circles may seem to be shifted relative to each other. Sometimes the pieces will appear move like in the Revolving Circles Illusion.

The idea is due to the Japanese psychologist Akiyoshi Kitaoka, see [McNaughton, pp. 46-47].

References

  1. P. McNaughton, Perspective and Other Optical Illusions, Walker & Company, 2007

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Copyright © 1996-2017 Alexander Bogomolny

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