Dynamics of a perturbed random neuronal network with burst-timing-dependent plasticity

Neuroplasticity, also known as brain plasticity or neuronal plasticity, allows the brain to improve its connections or rewire itself. The synaptic modifications can help the brain to enhance fitness, to promote existing cognitive capabilities, and to recover from some brain injuries. Furthermore, br...

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Bibliographic Details
Published in:The European physical journal. ST, Special topics Special topics, 2022-12, Vol.231 (22-23), p.4049-4056
Main Authors: Sayari, Elaheh, Batista, Antonio M., Gabrick, Enrique C., Iarosz, Kelly C., Hansen, Matheus, Szezech, José D., Borges, Fernando S.
Format: Article
Language:English
Subjects:
Atomic
Brain
Classical and Continuum Physics
Collective Behavior of Nonlinear Dynamical Oscillators
Condensed Matter Physics
Head injuries
Materials Science
Measurement Science and Instrumentation
Molecular
Neural networks
Neurons
Optical and Plasma Physics
Perturbation
Physics
Physics and Astronomy
Regular Article
Synchronism
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Summary:Neuroplasticity, also known as brain plasticity or neuronal plasticity, allows the brain to improve its connections or rewire itself. The synaptic modifications can help the brain to enhance fitness, to promote existing cognitive capabilities, and to recover from some brain injuries. Furthermore, brain plasticity has impacts on neuronal synchronisation. In this work, we build a neuronal network composed of coupled Rulkov neurons with excitatory connections randomly distributed. We consider burst-timing-dependent plasticity to investigate the effects of external perturbations, such as periodic and random pulses, on the neuronal synchronous behaviour. The plasticity changes the synaptic weights between the presynaptic and postsynaptic neurons, and as a consequence the burst synchronisation. We verify that the external periodic and random pulsed perturbations can induce synchronisation and desynchronisation states. One of our main results is to demonstrate that bursting synchronisation and desynchronisation in a network with burst-timing-dependent plasticity can emerge according to alterations of the initial synaptic weights. Furthermore, we show that external periodic and random pulsed currents can be an effective method to suppress neuronal activities related to pathological synchronous behaviour.
ISSN:1951-6355
1951-6401
DOI:10.1140/epjs/s11734-022-00694-4