Chimera states in networks of nonlocally coupled hindmarsh-rose neuron models

Johanne Hizanidis, Vasileios G. Kanas, Anastasios Bezerianos, Tassos Bountis

Research output: Contribution to journalArticlepeer-review

156 Citations (Scopus)

Abstract

We have identified the occurrence of chimera states for various coupling schemes in networks of two-dimensional and three-dimensional Hindmarsh-Rose oscillators, which represent realistic models of neuronal ensembles. This result, together with recent studies on multiple chimera states in nonlocally coupled FitzHugh-Nagumo oscillators, provide strong evidence that the phenomenon of chimeras may indeed be relevant in neuroscience applications. Moreover, our work verifies the existence of chimera states in coupled bistable elements, whereas to date chimeras were known to arise in models possessing a single stable limit cycle. Finally, we have identified an interesting class of mixed oscillatory states, in which desynchronized neurons are uniformly interspersed among the remaining ones that are either stationary or oscillate in synchronized motion.

Original languageEnglish
Article number1450030
JournalInternational Journal of Bifurcation and Chaos
Volume24
Issue number3
DOIs
Publication statusPublished - Mar 2014

Keywords

  • Chimera states
  • Hindmarsh-Rose models
  • bistability
  • synchronization

ASJC Scopus subject areas

  • Modelling and Simulation
  • Engineering (miscellaneous)
  • General
  • Applied Mathematics

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