Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Model of local velocity in the primary visual cortical cells

Not Accessible

Your library or personal account may give you access

Abstract

A motion model for the early stages of motion processing in the visual cortex that focuses on velocity properties is presented. The model presents analytically the correlation between the velocity tuning curve and various cell parameters. The building block for this model is the rebound response, which makes possible the detection of spatial and temporal edges. The model suggests that adjacent subunits in the primary cortical cells display different strengths in their rebound responses, and thus a synergistic response is evoked in the preferred direction. The analysis deals separately with the two cutoff points of the velocity tuning curves. The model predicts a linear relation between the low cutoff point and the receptive-field size and an inverse correlation with the integration time. The high cutoff point is inversely correlated with the cell threshold.

© 1995 Optical Society of America

Full Article  |  PDF Article
More Like This
Spatiotemporal receptive fields of cells in V1 are optimally shaped for stimulus velocity estimation

Giacomo Cocci, Davide Barbieri, and Alessandro Sarti
J. Opt. Soc. Am. A 29(1) 130-138 (2012)

Filter selection model for motion segmentation and velocity integration

Steven J. Nowlan and Terrence J. Sejnowski
J. Opt. Soc. Am. A 11(12) 3177-3200 (1994)

Computational structure of a biological motion-detection system as revealed by local detector analysis in the fly’s nervous system

Martin Egelhaaf, Alexander Borst, and Werner Reichardt
J. Opt. Soc. Am. A 6(7) 1070-1087 (1989)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (33)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved