Next: Introduction Up: Lateral Interactions in the Cortex: Structure and Function

A Basis for Long-Range Inhibition Across Cortex

John G. Taylor and Farrukh N. Alavi
Department of Mathematics
King's College London
The Strand
London WC2R 2LS
United Kingdom
{udah057,f.alavi}@kcl.ac.uk

Abstract

Two sets of lateral inhibitory nets are analysed for their ability to support long-range competition between distant cortical sites of activity. Both are found to be effective. One of these, the nucleus reticularis of the thalamus, is found to support global wave activity promoting a single or highly correlated cortical focus for posterior attention. The other is seen as giving rise to active memory in frontal cortical areas, as well as supporting anterior attention. It also allows for growth and rotation of population vectors.

Introduction
A Simplified Global Competitive Model
Modelling the Global Competitive Gate
- The Model
  - Formulation
  - Analysis of the Model
- Simulations
  - The Simulation Model
  - Simulation Results
The ACTION Network
- Active Memory
- Attention
Conclusions
References

Next: Introduction Up: Lateral Interactions in the Cortex: Structure and Function

About this document ...