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

Durrant, Simon and Feng, J. (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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Negatively correlated firing: the functional meaning of lateral inhibition within cortical columns
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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:Article
Additional Information: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.
Keywords:Inhibition, Population coding, Position tracking
Subjects:C Biological Sciences > C800 Psychology
C Biological Sciences > C850 Cognitive Psychology
C Biological Sciences > C860 Neuropsychology
Divisions:College of Social Science > School of Psychology
ID Code:4723
Deposited By: Alison Wilson
Deposited On:12 Oct 2011 06:56
Last Modified:13 Mar 2013 09:02

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