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| Research article summary (published 30 Mar 2003): |
The dynamical foundations of motion pattern formation: stability, selective adaptation, and perceptual continuity.
Full Abstract
A dynamical model is used to show that global motion pattern formation for several different apparent motion stimuli can be embodied in the stable distribution of activation over a population of concurrently activated, directionally selective motion detectors. The model, which is based on motion detectors being interactive, noisy, and self-stabilizing, accounts for such phenomena as bistability, spontaneous switching, hysteresis, and selective adaptation. Simulations show that dynamical solutions to the motion correspondence problem for a bistable stimulus (two qualitatively different patterns are formed) apply as well to the solution for a monostable stimulus (only one pattern is formed) and highlight the role of interactions among sequentially stimulated detectors in establishing the state dependence and, thereby, the temporal persistence of percepts.
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Author information
Author/s: Hock, Howard S (HS); Schöner, Gregor (G); Giese, Martin (M);
Affiliation: Department of Psychology, Florida Atlantic University, Boca Raton, Florida 33431, USA. hockhs(-atsign-)fau.edu
Journal and publication information
Publication Type: Journal Article; Research Support, Non-U.S. Gov't
Journal: Perception & psychophysics (Percept Psychophys), published in United States. (Language: eng)
Reference: 2003-Apr; vol 65 (issue 3) : pp 429-57
Dates: Created 2003/06/04; Completed 2003/07/08; Revised 2006/11/15;
PMID: 12785073, status: MEDLINE (last retrieval date: 11/6/2008)
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
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