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Ehrenstein Illusion


EhrensteinIllusion

An illusion studied by the psychologist Walter Ehrenstein in which the sides of a square placed inside a pattern of concentric circles take an apparent curved shape. The name Ehrenstein is also associated with one of the illusory contour figures.


See also

Hering Illusion, Illusory Contour Figures, Orbison's Illusion, Wundt Illusion

This entry contributed by Margherita Barile

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References

A Special Place. Optical Illusions. "Square in a Circle." http://www.aspecialplace.net/illusions/square_circle.htm.Nagoya Visual illusion Experts Group. "Ehrenstein Illusion." http://humanities.lit.nagoya-u.ac.jp/~illusion/gallery/NVEG/standard/Ehrenstein01_e.html.

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Ehrenstein Illusion

Cite this as:

Barile, Margherita. "Ehrenstein Illusion." From MathWorld--A Wolfram Web Resource, created by Eric W. Weisstein. https://mathworld.wolfram.com/EhrensteinIllusion.html

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