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

The Bogart Effect

The Bogart Effect

(p.624) Chapter 89 The Bogart Effect
The Oxford Compendium of Visual Illusions

Sharon Gilad-Gutnick

Rohan Varma

Pawan Sinha

Oxford University Press

While a geometry-based eye-gaze estimation strategy has been the basis of many theories regarding the direction of one’s gaze, such a strategy relies on relatively detailed curvature information and therefore functions suboptimally under low-resolution viewing conditions. Partly in response to this concern, the past decade has seen the rise of luminance-based theories of eye-gaze estimation. The idea of luminance-based estimation of gaze direction arose from the observation that contrast negation affects eye-gaze perception, and an early demonstration and possible explanation for this phenomenon was offered by Sinha and named the “Bogart effect.” The Bogart Effect is an illusion of perceived gaze reversal in contrast negated images. It provides clues regarding the heuristics the visual system uses to robustly estimate gaze in real-world settings. This chapter discusses this illusion and related concepts.

Keywords:   Bogart effect, eye-gaze estimation, luminance-based theory, gaze direction, gaze reversal, negated images

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 .