Firing and synchronization modes in neural network under magnetic stimulation

•Neuronal activity is induced by magnetic stimulation.•Increasing magnetic coupling strength improve neuronal communication.•Increasing external electromagnetic induction induces decreasing of information transfer rate among neurons.•Synchronous activity of neurons groups is favorable at high electr...

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Bibliographic Details
Published in:Communications in nonlinear science & numerical simulation 2019-06, Vol.72, p.432-440
Main Authors: Etémé, A.S., Tabi, C.B., Mohamadou, A.
Format: Article
Language:English
Subjects:
Bibliographic coupling
Bifurcation theory
Combinatorics
Coupling
Domains
Electromagnetic induction
Firing activity
Magnetic fields
Magnetic stimulation
Neural networks
Neurons
Parameters
Stimulation
Synchronism
Synchronization factor
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Summary:•Neuronal activity is induced by magnetic stimulation.•Increasing magnetic coupling strength improve neuronal communication.•Increasing external electromagnetic induction induces decreasing of information transfer rate among neurons.•Synchronous activity of neurons groups is favorable at high electromagnetic radiation.•Weak electrical coupling promotes neuronal synchronization phenomenon. We examine two main behaviors including, firing activity and neuronal synchronization in a Hindmarsh–Rose neural network under magnetic stimulation. We use the theory of bifurcation analysis to seek the control parameters domains in which neuronal activity is set up. The statistical synchronization factor is recorded in order to evaluate the network synchronicity degree. The firing activity is found to be favorable when the values of control parameters, namely the magnetic coupling strength and the external electromagnetic induction, are between low-threshold and upper-threshold and unfavorable elsewhere. Additionally, the increase of electrical coupling strength drastically reduces the domain of control parameters where neuronal synchronization is expected. Our findings suggest that a rich neuronal activity including quiescent state, spiking/bursting regimes, amplitude death phenomenon and global synchronization may be efficiently regulated by electromagnetic induction of intra-and extracellular media of thalamic neurons.
ISSN:1007-5704
1878-7274
DOI:10.1016/j.cnsns.2019.01.004