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Negatively correlated firing: the functional meaning of lateral inhibition within cortical columns

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Durrant, Simon and Feng, Jianfeng. (2006) Negatively correlated firing: the functional meaning of lateral inhibition within cortical columns. BIOLOGICAL CYBERNETICS, 95 (5). pp. 431-453. ISSN 0340-1200

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Official URL: http://dx.doi.org/10.1007/s00422-006-0096-2

Abstract

Lateral inhibition is a well documented aspect of neural architecture in the main sensory systems. Existing accounts of lateral inhibition focus on its role in sharpening distinctions between inputs that are closely related. However, these accounts fail to explain the functional role of inhibition in cortical columns, such as those in V1, where neurons have similar response properties. In this paper, we outline a model of position tracking using cortical columns of integrate-and-fire and Hodgkin-Huxley-type neurons which respond optimally to a particular location, to show that negatively correlated firing patterns arise from lateral inhibition in cortical columns and that this provides a clear benefit for population coding in terms of stability, accuracy, estimation time and neural resources.

Item Type:

Journal Article

Subjects:

Q Science > QA Mathematics > QA76 Electronic computers. Computer science. Computer software
R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry

Divisions:

Faculty of Science > Centre for Scientific Computing
Faculty of Science > Computer Science

Journal or Publication Title:

BIOLOGICAL CYBERNETICS

Publisher:

SPRINGER

ISSN:

0340-1200