• Jan Dirk Blom


The term ‘objective’ polyopia was introduced in or shortly before 1928 by the German-American biological psychologist and philosopher Heinrich Klüver (1897–1979) to denote the perception of multiple identical images in regular visual perception (i.e. what is usually referred to as *polyopia). Klüver uses the term ‘objective’ polyopia in opposition to the terms *hallucinatory polyopia and *imaginal polyopia.


Visual Hallucination Opium Poppy Optical Illusion Greek Mythology Moon Illusion 
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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • Jan Dirk Blom
    • 1
  1. 1.Parnassia Bavo Group & University of GroningenThe HagueThe Netherlands

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