Synchronization transition in gap-junction-coupled leech neurons

Qingyun Wang, Zhisheng Duan, Zhaosheng Feng, Guanrong Chen and Qishao Lu

Physica A: Statistical Mechanics and its Applications, 2008, vol. 387, issue 16, 4404-4410

Abstract: Real neurons can exhibit various types of firings including tonic spiking, bursting as well as silent state, which are frequently observed in neuronal electrophysiological experiments. More interestingly, it is found that neurons can demonstrate the co-existing mode of stable tonic spiking and bursting, which depends on initial conditions. In this paper, synchronization in gap-junction-coupled neurons with co-existing attractors of spiking and bursting firings is investigated as the coupling strength gets increased. Synchronization transitions can be identified by means of the bifurcation diagram and the correlation coefficient. It is illustrated that the coupled neurons can exhibit different types of synchronization transitions between spiking and bursting when the coupling strength increases. In the course of synchronization transitions, an intermittent synchronization can be observed. These results may be instructive to understand synchronization transitions in neuronal systems.

Keywords: Coupled neurons; Synchronization transition; Oscillation; Leech neuron model; Bifurcation diagram (search for similar items in EconPapers)
Date: 2008
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:387:y:2008:i:16:p:4404-4410

DOI: 10.1016/j.physa.2008.02.067

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