Orbison illusion

Orbison illusion consisting of a square placed over radial lines.

The Orbison illusion (or Orbison's illusion) is an optical illusion first described by American psychologist William Orbison (19121952)[1] in 1939.

Description

The Orbison illusion consists of a two dimensional figure, such as a circle or square, superimposed over a background of radial lines or concentric circles. The result is an optical illusion in which both the figure and the rectangle which contains it appear to distorted; in particular, squares appear slightly bulged, circles appear elliptical, and the containing rectangle appears tilted.[2][3]


References

Footnotes

  1. Roeckelein, Jon E. (2006). Elsevier's Dictionary of Psychological Theories. Amsterdam: Elsevier. p. 651. ISBN 9780444517500.
  2. "Orbison illusion". newworldencyclopedia.org. New World Encyclopedia. Retrieved June 30, 2016.
  3. "Orbison illusion". opticalillusions.info. Retrieved June 30, 2016.

General References

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