Journal
INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS
Volume 70, Issue -, Pages 105-111Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijnonlinmec.2014.10.010
Keywords
Robust synchronization; Bursting neurons; Delayed chemical synapses
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Funding
- National Natural Science Foundation of China [11102038, 11472061, 11102094, 61104113]
- Fundamental Research Funds for the Central Universities
- DHU Distinguished Young Professor Program
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Synchronized firing of bursting neurons has been found in many real neural systems. In this paper, a modified bursting Hodgkin-Huxley neuronal model is proposed and used to construct neuronal systems with heterogeneous neurons coupled by delayed chemical synapses, then synchronization of the systems is studied in various conditions. First, synchronization for a two-neuron system is explored. It is found that if the synapse is excitatory, the two neurons could achieve burst synchronization easily. If the synapse is inhibitory, they can achieve anti-phase burst synchronization, which is robust to variation of systematic parameters. Second, robust synchronization for a globally coupled neuronal network is investigated. It is found that the robustness of the synchronization is sensitive to the parameter values of synaptic conductance and synaptic delay, but is less sensitive to the parameter values of synaptic decay time. It is also found that the oscillation frequency of the whole network is sensitive to the parameter values of synaptic delay and synaptic decay time, but is less sensitive to the parameter value of synaptic conductance. (C) 2014 Elsevier Ltd. All rights reserved.
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