Research article summary (published 30 May 2002):

Perceiving motion while moving: how pairwise nominal invariants make optical flow cohere.

Full Abstract

Computer-generated sequences simulated observer movement toward 10 randomly placed poles, 1 moving and 9 stationary. When observers judged their direction of movement, or heading, they used 3 related invariants:
The (a) convergence and (b) decelerating divergence of any 2 poles specified that heading was to the outside of the nearer pole, and the (c) crossover of 2 poles specified that heading was to the outside of the farther pole. With all poles stationary, the field of 45 pairwise movements yielded a coherent specification of heading. With I pole moving with respect to the others, however, the field could yield an incoherent heading solution. Such incoherence was readily detectable; similar pole motion leading to coherent flow, however, was less readily detectable.

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Author information

Author/s: Cutting, James E (JE); Readinger, Wilson O (WO);

Affiliation: Department of Psychology, Cornell University, Ithaca, New York 14853-7601, USA. jec7(-atsign-)cornell.edu

Journal and publication information

Publication Type: Journal Article

Journal: Journal of experimental psychology. Human perception and performance (J Exp Psychol Hum Percept Perform), published in United States. (Language: eng)

Reference: 2002-Jun; vol 28 (issue 3) : pp 731-47

Dates: Created 2002/06/21; Completed 2003/01/10; Revised 2004/11/17;

PMID: 12075899, status: MEDLINE (last retrieval date: 12/26/2008)

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Adult Discrimination Learning Humans Kinesthesis Motion Perception

Optical Illusions Orientation Psychomotor Performance Psychophysics Vision Disparity

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