We study numerically effects of time delay in networks of delay-coupled excitable FitzHugh–Nagumo systems with dissipation. Generation of periodic self-sustained oscillations and its threshold are analyzed depending on the dissipation of a single neuron, the delay time, and random initial conditions. The peculiarities of spatiotemporal dynamics of time-delayed bidirectional ring-structured FitzHugh–Nagumo neuronal systems are investigated in cases of local and nonlocal coupling topology between the nodes, and a first-order nonequilibrium phase transition to synchrony is established. It is shown that the emergence of an oscillatory activity in delay-coupled FitzHugh–Nagumo neurons is observed for smaller values of the coupling strength as the dissipation parameter decreases. This can provide the possibility of controlling the spatiotemporal behavior of the considered neuronal networks. The observed effects are quantified by plotting distributions of the maximal Lyapunov exponent and the global order parameter in terms of delay and coupling strength.
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July 2023
Research Article|
July 05 2023
Role of coupling delay in oscillatory activity in autonomous networks of excitable neurons with dissipation
Special Collection:
Control of self-organizing nonlinear systems
A. V. Bukh
;
A. V. Bukh
(Investigation, Methodology, Software, Supervision, Validation, Visualization, Writing – review & editing)
1
Institute of Physics, Saratov State University
, 83 Astrakhanskaya Street, Saratov 410012, Russia
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I. A. Shepelev
;
I. A. Shepelev
(Conceptualization, Funding acquisition, Investigation, Methodology, Project administration, Supervision, Writing – original draft, Writing – review & editing)
1
Institute of Physics, Saratov State University
, 83 Astrakhanskaya Street, Saratov 410012, Russia
2
Almetyevsk State Petroleum Institute
, 2 Lenina Street, Almetyevsk 423458, Tatarstan, Russia
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E. M. Elizarov
;
E. M. Elizarov
(Conceptualization, Investigation, Methodology, Validation, Writing – original draft)
1
Institute of Physics, Saratov State University
, 83 Astrakhanskaya Street, Saratov 410012, Russia
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S. S. Muni
;
S. S. Muni
(Formal analysis, Methodology, Writing – review & editing)
3
Department of Physical Sciences, Indian Institute of Science Education and Research Kolkata
, Campus Road, Mohanpur, West Bengal 741246, India
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E. Schöll
;
E. Schöll
(Conceptualization, Formal analysis, Methodology, Project administration, Supervision, Writing – review & editing)
4
Institut für Theoretische Physik, Technische Universität Berlin
, 10623 Berlin, Germany
; Bernstein Center for Computational Neuroscience Berlin
, 10115 Berlin, Germany
; and Potsdam Institute for Climate Impact Research
, 14473 Potsdam, Germany
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G. I. Strelkova
G. I. Strelkova
a)
(Conceptualization, Formal analysis, Funding acquisition, Methodology, Project administration, Supervision, Writing – review & editing)
1
Institute of Physics, Saratov State University
, 83 Astrakhanskaya Street, Saratov 410012, Russia
a)Author to whom correspondence should be addressed: strelkovagi@sgu.ru
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a)Author to whom correspondence should be addressed: strelkovagi@sgu.ru
Note: Control of self-organizing nonlinear systems.
Chaos 33, 073114 (2023)
Article history
Received:
February 27 2023
Accepted:
June 19 2023
Citation
A. V. Bukh, I. A. Shepelev, E. M. Elizarov, S. S. Muni, E. Schöll, G. I. Strelkova; Role of coupling delay in oscillatory activity in autonomous networks of excitable neurons with dissipation. Chaos 1 July 2023; 33 (7): 073114. https://doi.org/10.1063/5.0147883
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