Orbison illusion

Orbison illusion

The Orbison illusion is an optical illusion that was first described by the psychologist William Orbison in 1939. The bounding rectangle and inner square both appear distorted in the presence of the radiating lines. The background gives us the impression there is some sort of perspective. As a result, our brain sees the shape distorted. This is a variant of the Hering and Wundt illusions.

References

ISBN links support NWE through referral fees

• R. N. Shepard, Mind Sights, W. H. Freeman and Company, 1990
• A. Seckel, The Art of Optical Illusions, Carlton Books, 2000 (#126)
• The Mind's Eye, Readings from SCIENTIFIC AMERICAN, W. H. Freeman and Company, 1986

External links

• Orbison Illusion

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