When two wrongs make a right: synchronized neuronal bursting from combined electrical and inhibitory coupling

Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
Reimbay ReimbayevIgor Belykh

Abstract

Synchronized cortical activities in the central nervous systems of mammals are crucial for sensory perception, coordination and locomotory function. The neuronal mechanisms that generate synchronous synaptic inputs in the neocortex are far from being fully understood. In this paper, we study the emergence of synchronization in networks of bursting neurons as a highly non-trivial, combined effect of electrical and inhibitory connections. We report a counterintuitive find that combined electrical and inhibitory coupling can synergistically induce robust synchronization in a range of parameters where electrical coupling alone promotes anti-phase spiking and inhibition induces anti-phase bursting. We reveal the underlying mechanism, which uses a balance between hidden properties of electrical and inhibitory coupling to act together to synchronize neuronal bursting. We show that this balance is controlled by the duty cycle of the self-coupled system which governs the synchronized bursting rhythm.This article is part of the themed issue 'Mathematical methods in medicine: neuroscience, cardiology and pathology'.

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Citations

Apr 19, 2018·Physical Chemistry Chemical Physics : PCCP·Dmitry A Safonov, Vladimir K Vanag
May 17, 2017·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·José M Amigó, Michael Small
Dec 18, 2020·Frontiers in Systems Neuroscience·Paulo R ProtacheviczJurgen Kurths

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