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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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Adaptation to Brightness Change, Contours, Jogging, and Apparent Motion

Adaptation to Brightness Change, Contours, Jogging, and Apparent Motion

Chapter:
(p.745) Chapter 108 Adaptation to Brightness Change, Contours, Jogging, and Apparent Motion
Source:
The Oxford Compendium of Visual Illusions
Author(s):

Stuart Anstis

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780199794607.003.0108

Frisby and Stone have dubbed adaptation the “psychophysicist’s electrode” and John Mollon once famously said, “If it adapts, it’s there.” Psychologists piously hope that their many experiments on visual adaptation will tell physiologists where to look inside the brain. This chapter describes visual adaptation to temporal ramps, spatial edges, and apparent motion and touches on kinesthetic aftereffects from jogging. Sawtooth adaptation, a ramp aftereffect that is produced by gazing at a spatially uniform patch whose luminance is temporally modulated by a repetitive sawtooth, either gradually dimming and turning sharply back on (rapid-on) or gradually brightening and turning sharply back off (rapid-off), is discussed. Related concepts that are covered include pattern-specific contrast adaptation, contour adaptation, adaptation to apparent motion, and adapting to flicker, which changes apparent spatial frequency.

Keywords:   adaptation, aftereffect, brightness perception, contour perception, jogging, apparent motion

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