| Texto completo | |
| Autor(es): |
Roehr, Vera
[1]
;
Berner, Rico
[2, 3]
;
Lameu, Ewandson L.
[4, 5]
;
Popovych, V, Oleksandr
;
Yanchuk, Serhiy
[2]
Número total de Autores: 5
|
| Afiliação do(s) autor(es): | [1] Tech Univ Berlin, Neurotechnol Grp, Berlin - Germany
[2] Tech Univ Berlin, Inst Math, Berlin - Germany
[3] Tech Univ Berlin, Inst Theoret Phys, Berlin - Germany
[4] Humboldt Univ, Inst Phys, Berlin - Germany
[5] Natl Inst Space Res INPE, Sao Jose Dos Campos, SP - Brazil
Número total de Afiliações: 5
|
| Tipo de documento: | Artigo Científico |
| Fonte: | PLoS One; v. 14, n. 11 NOV 14 2019. |
| Citações Web of Science: | 0 |
| Resumo | |
We report the phenomenon of frequency clustering in a network of Hodgkin-Huxley neurons with spike timing-dependent plasticity. The clustering leads to a splitting of a neural population into a few groups synchronized at different frequencies. In this regime, the amplitude of the mean field undergoes low-frequency modulations, which may contribute to the mechanism of the emergence of slow oscillations of neural activity observed in spectral power of local field potentials or electroencephalographic signals at high frequencies. In addition to numerical simulations of such multi-clusters, we investigate the mechanisms of the observed phenomena using the simplest case of two clusters. In particular, we propose a phenomenological model which describes the dynamics of two clusters taking into account the adaptation of coupling weights. We also determine the set of plasticity functions (update rules), which lead to multi-clustering. (AU) | |
| Processo FAPESP: | 16/23398-8 - Plasticidade sináptica em redes neuronais com atraso |
| Beneficiário: | Ewandson Luiz Lameu |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 17/13502-5 - Sincronização em redes com atraso e plasticidade sináptica |
| Beneficiário: | Ewandson Luiz Lameu |
| Modalidade de apoio: | Bolsas no Exterior - Estágio de Pesquisa - Pós-Doutorado |