Hostname: page-component-89b8bd64d-ksp62 Total loading time: 0 Render date: 2026-05-12T11:59:34.511Z Has data issue: false hasContentIssue false

A psychophysically motivated model for two-dimensional motion perception

Published online by Cambridge University Press:  02 June 2009

Hugh R. Wilson
Affiliation:
Visual Sciences Center, University of Chicago, Chicago
Vincent P. Ferrera
Affiliation:
Visual Sciences Center, University of Chicago, Chicago
Christopher Yo
Affiliation:
Visual Sciences Center, University of Chicago, Chicago

Abstract

A quantitative model is developed to predict the perceived direction of moving two-dimensional patterns. The model incorporates both a simple motion energy pathway and a “texture boundary motion” pathway that incorporates response squaring before the extraction of motion energy. These pathways correspond to Fourier and non-Fourier motion pathways and are hypothesized to reflect processing in the VI-MT and V1-V2-MT pathway, respectively. A cosine-weighted sum of these pathways followed by competitive feedback inhibition accurately predicts the perceived direction for patterns composed of two cosine gratings at different orientations (“plaids”). The model also predicts direction discrimination, differences between foveal and peripheral viewing, changes in perceived direction with exposure duration, motion masking, and motion transparency.

Information

Type
Research Articles
Copyright
Copyright © Cambridge University Press 1992

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable