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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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High-Level Organization of Motion

High-Level Organization of Motion

Ambiguous, Primed, Sliding, and Flashed

Chapter:
(p.475) Chapter 64 High-Level Organization of Motion
Source:
The Oxford Compendium of Visual Illusions
Author(s):

Stuart Anstis

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780199794607.003.0064

Some ambiguous patterns of flashed dots are equally likely to be seen as jumping horizontally or vertically. Priming dots can disambiguate this motion, showing that observers prefer to see straight-line rather than L-shaped motion. Pairs of dots that circle around each other can become perceptually linked into larger, global shapes including many such pairs. Moving backgrounds can distort moving dots so that their circular paths appear elliptical or even linear. Observers radically misperceive the sliding motions of rods (chopsticks) or rings that glide over each other. Finally, a moving background can strongly shift or distort a flashed-up static cross. This chapter discusses these concepts.

Keywords:   motion, chopstick, flash, ambiguous, primed, sliding

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