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Effects of Spike Frequency Adaptation on Synchronization Transitions in Electrically Coupled Neuronal Networks with Scale-Free Connectivity |
| WANG Lei, ZHANG Pu-Ming, LIANG Pei-Ji, QIU Yi-Hong** |
School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200240
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| Cite this article: |
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WANG Lei, ZHANG Pu-Ming, LIANG Pei-Ji et al 2014 Chin. Phys. Lett. 31 070501 |
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Abstract Effects of spike frequency adaptation (SFA) on the synchronous behavior of population neurons are investigated in electrically coupled networks with a scale-free property. By a computational approach, we corroborate that pairwise correlations between neurons would decrease if neurons exhibit the feature of SFA, which is similar to previous experimental observations. However, unlike the case of pairwise correlations, population activities of neurons show a rather complex variation mode: compared with those of non-adapted neurons, neurons in the networks having weak-degrees of SFA will impair population synchronizations; while neurons exhibiting strong-degrees of SFA will enhance population synchronizations. Moreover, a variation of coupling strength between neurons will not alter this phenomenon significantly, unless the coupling strength is too weak. Our results suggest that synchronous activity of electrically coupled population neurons is adaptation-dependent, and this adaptive feature may imply some coding strategies of neuronal populations.
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Published: 30 June 2014
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| PACS: |
05.45.Xt
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(Synchronization; coupled oscillators)
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87.19.lj
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(Neuronal network dynamics)
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87.19.lm
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(Synchronization in the nervous system)
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