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Interplay between internal delays and coherent oscillations in delayed coupled noisy excitable systems

Authorized Users Only
2015
Authors
Grozdanović, Ines
Todorović, Kristina
Vasović, Nebojša
Burić, Nikola
Trisović, Nataša
Article (Published version)
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Abstract
Numerical study of variations in coherence of spike trains produced by two stochastically perturbed FitzHugh-Nagumo excitable systems with internal and coupling time-delays is performed. Both, the internal time-delay and the interaction time-delay in some domains of values can substantially increase the coherence but the interplay of the two delays can also lead to quite incoherent spike trains. Numerically observed dependence of the coherence on the delays is qualitatively explained by considering the bifurcations in the system caused by the variations of the values of the internal and the interaction time-lags.
Keywords:
Oscillations / Internal delay / External delay / Noise / Excitability / Bifurcation
Source:
International Journal of Non-Linear Mechanics, 2015, 73, 121-127
Publisher:
  • Pergamon-Elsevier Science Ltd, Oxford
Projects:
  • Mathematical Modelas and Optimization Methods on Large-Scale Systems (RS-174010)

DOI: 10.1016/j.ijnonlinmec.2014.11.010

ISSN: 0020-7462

WoS: 000355022100018

Scopus: 2-s2.0-84939999563
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URI
http://farfar.pharmacy.bg.ac.rs/handle/123456789/2469
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Institution
Pharmacy

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