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.

The 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 distorted; in particular, squares appear slightly bulged, circles appear elliptical, and the containing rectangle appears tilted.[2]

References

  1. Roeckelein, Jon E. (2006). Elsevier's Dictionary of Psychological Theories. Amsterdam: Elsevier. p. 651. ISBN 9780444517500.
  2. "Orbison illusion". opticalillusions.info. Archived from the original on October 7, 2016. Retrieved June 30, 2016.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.