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Perception & Psychophysics

, Volume 20, Issue 2, pp 129–137 | Cite as

An empirical taxonomy of visual illusions

  • Stanley Coren
  • Joan S. Girgus
  • Howard Erlichman
  • A. Ralph Hakstian
Article

Abstract

A classification system for visual-geometric illusions, based upon the interrelationships between behavioral responses to various distortions was created. Forty-five illusion configurations were presented to 221 observers. Factor analysis revealed that there are five classes of illusions. A secondorder analysis revealed that visual distortions are ultimately reducible to two global types of distortions: illlusions of extent and illusions of shape or direction.

Keywords

Visual Illusion Poggendorff Illusion Longe Segment Illusion Magnitude Ponzo Illusion 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Reference Note

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Copyright information

© Psychonomic Society, Inc. 1976

Authors and Affiliations

  • Stanley Coren
    • 1
  • Joan S. Girgus
    • 2
  • Howard Erlichman
    • 3
  • A. Ralph Hakstian
    • 1
  1. 1.University of British ColumbiaVancouverCanada
  2. 2.The City College of the City University of New YorkNew York
  3. 3.The Graduate Centre of the City University of New YorkNew York

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