Journal
NONLINEAR DYNAMICS
Volume 81, Issue 4, Pages 1689-1697Publisher
SPRINGER
DOI: 10.1007/s11071-015-2099-9
Keywords
Neuron; Newman-Watts network; Channel noise; Time delay; Synchronization transition
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Funding
- Natural Science Foundation of Shandong Province of China [ZR2012AM013]
- Key Project Foundation of Provincial Outstanding Young Talent in Higher School [2013SQRL067ZD]
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In this paper, we numerically study the effect of ion channel noise on the synchronization of delayed Newman-Watts network of stochastic Hodgkin-Huxley neurons. It is found that time delay can induce synchronization transitions only when channel noise intensity is intermediate, and the synchronization transitions become most obvious when channel noise intensity is optimal. As channel noise intensity is varied, the neurons can also exhibit synchronization transitions, and the phenomenon is enhanced when time delay is tuned at around time delays that can induce synchronization transitions. Moreover, this phenomenon becomes most obvious when the value of coupling strength or the value of network randomness is optimal. These results show that channel noise has a subtle regulation effect on the synchronization of the neuronal network. These findings may find potential implications for the normal and pathological functions in the brain and the information processing and transmission in neural systems.
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