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The Oxford Compendium of Visual Illusions$
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Arthur G. Shapiro and Dejan Todorovic

Print publication date: 2017

Print ISBN-13: 9780199794607

Published to Oxford Scholarship Online: June 2017

DOI: 10.1093/acprof:oso/9780199794607.001.0001

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Where Have All the Illusions Gone?

Where Have All the Illusions Gone?

A Critique of the Concept of Illusion

Chapter:
(p.144) Chapter 10 Where Have All the Illusions Gone?
Source:
The Oxford Compendium of Visual Illusions
Author(s):

Brian Rogers

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780199794607.003.0010

It might sound perverse to question the concept of illusion in a book titled The Compendium of Visual Illusions—not least because the idea of illusions and illusory perception has been around for at least two millennia—but that is the purpose of this chapter. Put simply, this chapter argues the case that there is no satisfactory way of distinguishing between “veridical” and “illusory” perception and hence we are forced to regard either all of our perceptions as illusory or none of them. The two main questions addressed are: How should we identify what is the objective reality or truth from which our illusory perception is discrepant? And is there a satisfactory definition of an illusion that allows us to distinguish between those aspects of perception that are illusory and those that are veridical?

Keywords:   visual perception, illusion, veridical, illusory, perception, objective reality, truth

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