Computing heading in the presence of moving objects: a model that uses motion-opponent operators.

Full Abstract

Psychophysical experiments have shown that human heading judgments can be biased by the presence of moving objects. Here we present a theoretical argument that motion differences can account for the direction of bias seen in humans. We further examine the responses of a computer simulation of a model for computing heading that uses motion-opponent operators similar to cells in the primate middle temporal visual area. When moving objects are present, this model shows similar biases to those seen with humans, suggesting that such a model may underlie human heading computations.

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Author information

Author/s: Royden, Constance S (CS);

Affiliation: Department of Mathematics and Computer Science, College of the Holy Cross, P.O. Box 116A, Worcester, MA 01610, USA.

Journal and publication information

Publication Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S.

Journal: Vision research (Vision Res), published in England. (Language: eng)

Reference: 2002-Dec; vol 42 (issue 28) : pp 3043-58

Dates: Created 2002/12/13; Completed 2003/04/14; Revised 2006/11/15;

PMID: 12480074, 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.

Motion Perception - physiology
Psychophysics
Temporal Lobe - physiology
Visual Fields - physiology
Visual Pathways - physiology

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