Control of synchronization and spiking regularity by heterogenous aperiodic high-frequency signal in coupled excitable systems

Ying Mei Qin, Jiang Wang, Cong Men, Wai Lok Chan, Xi Le Wei, Bin Deng

Research output: Journal article publicationJournal articleAcademic researchpeer-review

5 Citations (Scopus)

Abstract

This paper investigates the synchronization and spiking regularity induced by heterogenous aperiodic (HA) signal in coupled excitable FitzHugh-Nagumo systems. We found new nontrivial effects of couplings and HA signals on the firing regularity and synchronization in coupled excitable systems without a periodic external driving. The phenomenon is similar to array enhanced coherence resonance (AECR), and it is shown that AECR-type behavior is not limited to systems driven by noises. It implies that the HA signal may be beneficial for the brain function, which is similar to the role of noise. Furthermore, it is also found that the mean frequencies, the amplitudes and the heterogeneity of HA stimuli can serve as control parameters in modulating spiking regularity and synchronization in coupled excitable systems. These results may be significant for the control of the synchronized firing of the brain in neural diseases like epilepsy.
Original languageEnglish
Pages (from-to)2775-2782
Number of pages8
JournalCommunications in Nonlinear Science and Numerical Simulation
Volume18
Issue number10
DOIs
Publication statusPublished - 1 Oct 2013

Keywords

  • Array enhanced coherence resonance
  • FitzHugh-Nagumo model
  • Heterogenous aperiodic stimuli
  • Locally coupled network
  • Phase synchronization

ASJC Scopus subject areas

  • Numerical Analysis
  • Modelling and Simulation
  • Applied Mathematics

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