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First return maps for the dynamics of synaptically coupled conditional bursters
Journal article   Peer reviewed

First return maps for the dynamics of synaptically coupled conditional bursters

Evandro Manica, Georgi S Medvedev and Jonathan E Rubin
Biological cybernetics, v 103(2), pp 87-104
Aug 2010
PMID: 20614222

Abstract

Action Potentials Animals Models, Biological Synapses - physiology Neurons - physiology
The pre-Bötzinger complex (preBötc) in the mammalian brainstem has an important role in generating respiratory rhythms. An influential differential equation model for the activity of individual neurons in the preBötc yields transitions from quiescence to bursting to tonic spiking as a parameter is varied. Further, past work has established that bursting dynamics can arise from a pair of tonic model cells coupled with synaptic excitation. In this paper, we analytically derive one- and two-dimensional maps from the differential equations for a self-coupled neuron and a two-neuron network, respectively. Using a combination of analysis and simulations of these maps, we explore the possible forms of dynamics that the model networks can produce as well as which transitions between dynamic regimes are mathematically possible.

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Domestic collaboration
International collaboration
Web of Science research areas
Computer Science, Cybernetics
Neurosciences
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