Journal of Computational Neuroscience

, Volume 30, Issue 2, pp 501–513 | Cite as

A network of spiking neurons that can represent interval timing: mean field analysis

Article

Abstract

Despite the vital importance of our ability to accurately process and encode temporal information, the underlying neural mechanisms are largely unknown. We have previously described a theoretical framework that explains how temporal representations, similar to those reported in the visual cortex, can form in locally recurrent cortical networks as a function of reward modulated synaptic plasticity. This framework allows networks of both linear and spiking neurons to learn the temporal interval between a stimulus and paired reward signal presented during training. Here we use a mean field approach to analyze the dynamics of non-linear stochastic spiking neurons in a network trained to encode specific time intervals. This analysis explains how recurrent excitatory feedback allows a network structure to encode temporal representations.

Keywords

Recurrent network Mean field theory Synaptic plasticity Spontaneous activity Reinforcement learning 

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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  1. 1.Department of Neurobiology and AnatomyThe University of Texas Medical School at HoustonHoustonUSA
  2. 2.Department of Electrical and Computer EngineeringThe University of Texas at AustinAustinUSA

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