How synapses in the auditory system wax and wane: theoretical perspectives

Spike-timing-dependent synaptic plasticity has recently provided an account of both the acuity of sound localization and the development of temporal-feature maps in the avian auditory system. The dynamics of the resulting learning equation, which describes the evolution of the synaptic weights, is g...

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Bibliographic Details
Published inBiological cybernetics Vol. 89; no. 5; pp. 318 - 332
Main Authors Burkitt, A N, van Hemmen, J L
Format Journal Article
LanguageEnglish
Published Germany Springer Nature B.V 01.11.2003
Subjects
Action Potentials - physiology
Animals
Auditory Perception - physiology
Ears & hearing
Evoked Potentials, Auditory - physiology
Excitatory Postsynaptic Potentials - physiology
Humans
Models, Neurological
Neuronal Plasticity - physiology
Neurons
Neurons - physiology
Strigiformes - physiology
Synapses - physiology
Synaptic Transmission - physiology
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Summary:Spike-timing-dependent synaptic plasticity has recently provided an account of both the acuity of sound localization and the development of temporal-feature maps in the avian auditory system. The dynamics of the resulting learning equation, which describes the evolution of the synaptic weights, is governed by an unstable fixed point. We outline the derivation of the learning equation for both the Poisson neuron model and the leaky integrate-and-fire neuron with conductance synapses. The asymptotic solutions of the learning equation can be described by a spectral representation based on a biorthogonal expansion.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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ISSN:0340-1200
1432-0770
DOI:10.1007/s00422-003-0437-3