A Simple Model for Cortical Orientation Selectivity

  • Trevor Mundel
  • Alexander Dimitrov
  • Jack D. Cowan

Abstract

A simple mathematical model for the large-scale circuitry of primary visual cortex is introduced. It is shown that a basic cortical architecture of recurrent local excitation and lateral inhibition can account quantitatively for such properties as orientation tuning. Non-local coupling between similar orientation patches, when added to the model, can satisfactorily reproduce such effects as non-local iso-orientation suppression, and non-local cross-orientation enhancement. Following this an account is given of perceptual phenomena such as the direct and indirect tilt illusions.

Keywords

Receptive Field Lateral Inhibition Test Line Orientation Tuning Horizontal Connection 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1997

Authors and Affiliations

  • Trevor Mundel
    • 1
  • Alexander Dimitrov
    • 2
  • Jack D. Cowan
    • 2
  1. 1.Department of NeurologyUniversity of Chicago HospitalsChicagoUSA
  2. 2.Department of MathematicsUniversity of ChicagoChicagoUSA

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