Jump to ContentJump to Main Navigation
The Oxford Compendium of Visual Illusions$
Users without a subscription are not able to see the full content.

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

Show Summary Details
Page of

PRINTED FROM OXFORD SCHOLARSHIP ONLINE (oxford.universitypressscholarship.com). (c) Copyright Oxford University Press, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in OSO for personal use. date: 28 September 2021

Dynamic Illusory Size Contrast

Dynamic Illusory Size Contrast

Enhanced Relative Size Effects Due to Stimulus Motion

(p.258) Chapter 27 Dynamic Illusory Size Contrast
The Oxford Compendium of Visual Illusions

Ryan E. B. Mruczek

D. Blair Christopher

Lars Strother

Gideon P. Caplovitz

Oxford University Press

Static size contrast and assimilation illusions, such as the Ebbinghaus and Delboeuf illusions, show that the size of nearby objects in a scene can influence the perceived size of a central target. This chapter describes a dynamic variant of these classic size illusions, called the Dynamic Illusory Size-Contrast (DISC) effect. In the DISC effect, a surrounding stimulus that continuously changes size causes an illusory size change in a central target. The effect is dramatically enhanced in the presence of additional stimulus dynamics arising from eye movements or target motion. The chapter proposes that this surprisingly powerful effect of motion on perceived size depends on the degree of uncertainty inherent in the size of the retinal image of a moving object.

Keywords:   size contrast, Delboeuf, Ebbinghaus illusion, size illusion, motion, Dynamic Illusory Size-Contrast

Oxford Scholarship Online requires a subscription or purchase to access the full text of books within the service. Public users can however freely search the site and view the abstracts and keywords for each book and chapter.

Please, subscribe or login to access full text content.

If you think you should have access to this title, please contact your librarian.

To troubleshoot, please check our FAQs , and if you can't find the answer there, please contact us .