| Texto completo | |
| Autor(es): |
Sayari, Elaheh
;
Batista, Antonio M.
;
Gabrick, Enrique C.
;
Iarosz, Kelly C.
;
Hansen, Matheus
;
Szezech, Jose D., Jr.
;
Borges, Fernando S.
Número total de Autores: 7
|
| Tipo de documento: | Artigo Científico |
| Fonte: | European Physical Journal-Special Topics; v. 231, n. 22-23, p. 8-pg., 2022-10-17. |
| Resumo | |
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. (AU) | |
| Processo FAPESP: | 19/09150-1 - Efeito de tempo de atraso e plasticidade em sincronização neuronal |
| Beneficiário: | Matheus Hansen Francisco |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |