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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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The Breathing Light Illusion

The Breathing Light Illusion

Illusory Size and Brightness Variation Induced by Motion

Chapter:
(p.373) Chapter 47 The Breathing Light Illusion
Source:
The Oxford Compendium of Visual Illusions
Author(s):

Simone Gori

Enrico Giora

D. Alan Stubbs

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780199794607.003.0047

This chapter discusses the Breathing Light Illusion. The Breathing Light Illusion is a size and brightness illusion elicited by the self-motion of the observer. The stimulus consists of a circular white spot that is presented on a black background, characterized by blurred boundaries. The blurred spot, which in static view seems to glow and exhibits a self-luminance appearance, is perceived as wider, brighter, and more diffuse when it is approached but smaller, darker, and sharper when one recedes from it. A possible explanation of the phenomenon is related to the superimposition of the afterimage on the physical stimulus during dynamical viewing.

Keywords:   brightness illusion, size, brightness, motion, blurred boundaries, afterimage

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