Abstract It has been proved recently that the spike timing can play an important role in information transmission, so in this paper we develop a network with N-unit FitzHugh--Nagumo neurons coupled by gap junctions and discuss the dependence of the spike timing precision on synaptic coupling strength, the noise intensity and the size of the neuron ensemble. The calculated results show that the spike timing precision decreases as the noise intensity increases; and the ensemble spike timing precision increases with coupling strength increasing. The electric synapse coupling has a more important effect on the spike timing precision than the chemical synapse coupling.
Received: 20 December 2005
Revised: 07 June 2006
Accepted manuscript online:
(Mechanical and electrical properties of tissues and organs)
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos 10375016 and 10474018) and the Natural Science Foundation of Hebei Province (Grant Nos C2005000011and A2004000005) and the Key Subject Construction Project of Hebei Provincia
Cite this article:
Zhang Su-Hua(张素花), Zhan Yong(展永), Yu Hui(于慧), An Hai-Long(安海龙), and Zhao Tong-Jun(赵同军) The spike timing precision of FitzHugh--Nagumo neuron network coupled by gap junctions 2006 Chinese Physics 15 2450
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