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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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Attention-Generated Apparent Motion

Attention-Generated Apparent Motion

Chapter:
(p.527) Chapter 72 Attention-Generated Apparent Motion
Source:
The Oxford Compendium of Visual Illusions
Author(s):

Zhong-Lin Lu

George Sperling

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780199794607.003.0072

This chapter explores attention-generated apparent motion. A flickering display can seem to appear to move in opposite directions depending on which feature the observer attends to in the display. The illusory motion, generated by attention, demonstrates the mechanism of the third-order motion system: a dynamic salience map of the locations of the most salient stimulus features is determined jointly by stimulus strength (bottom-up) and by selective attention (top-down). Motion is computed directly and automatically from the salience map. Concepts covered in this chapter include apparent motion, first-order motion and second-order motion, feature tracking, salience maps, bottom-up processing, and top-down processing.

Keywords:   apparent motion, first-order motion, second-order motion, third-order motion, feature tracking, salience map, bottom-up processing, top-down processing

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