Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/62329
Título: | Criticality between Cortical States |
Autor(es): | Fontenele, Antonio J. Vasconcelos, Nivaldo António Portela Feliciano, Thaís Aguiar, Leandro A. A. Soares-Cunha, Carina Coimbra, Bárbara Dalla Porta, Leonardo Ribeiro, Sidarta Rodrigues, Ana João Sousa, Nuno Carelli, Pedro V. Copelli, Mauro |
Data: | 24-Mai-2019 |
Editora: | American Physical Society (APS) |
Revista: | Physical Review Letters |
Citação: | Fontenele, A. J., de Vasconcelos, N. A., Feliciano, T., Aguiar, L. A., Soares-Cunha, C., Coimbra, B., ... & Carelli, P. V. (2019). Criticality between cortical states. Physical review letters, 122(20), 208101. |
Resumo(s): | Since the first measurements of neuronal avalanches, the critical brain hypothesis has gained traction. However, if the brain is critical, what is the phase transition? For several decades, it has been known that the cerebral cortex operates in a diversity of regimes, ranging from highly synchronous states (with higher spiking variability) to desynchronized states (with lower spiking variability). Here, using both new and publicly available data, we test independent signatures of criticality and show that a phase transition occurs in an intermediate value of spiking variability, in both anesthetized and freely moving animals. The critical exponents point to a universality class different from mean-field directed percolation. Importantly, as the cortex hovers around this critical point, the avalanche exponents follow a linear relation that encompasses previous experimental results from different setups and is reproduced by a model. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/62329 |
DOI: | 10.1103/PhysRevLett.122.208101 |
ISSN: | 0031-9007 |
e-ISSN: | 1079-7114 |
Versão da editora: | https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.122.208101 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | ICVS - Artigos em revistas internacionais / Papers in international journals |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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fontenele2019.pdf | 1,02 MB | Adobe PDF | Ver/Abrir |