Criticality between Cortical States

Fontenele, Antonio J.; Vasconcelos, Nivaldo A. P. de; Feliciano, Thaís; Aguiar, Leandro A. A.; Soares-Cunha, Carina; Coimbra, Bárbara; Porta, Leonardo Dalla; Ribeiro, Sidarta Tollendal Gomes; Rodrigues, Ana João; Sousa, Nuno; Carelli, Pedro V.; Copelli, Mauro

Criticality between Cortical States

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dc.contributor.author	Fontenele, Antonio J.
dc.contributor.author	Vasconcelos, Nivaldo A. P. de
dc.contributor.author	Feliciano, Thaís
dc.contributor.author	Aguiar, Leandro A. A.
dc.contributor.author	Soares-Cunha, Carina
dc.contributor.author	Coimbra, Bárbara
dc.contributor.author	Porta, Leonardo Dalla
dc.contributor.author	Ribeiro, Sidarta Tollendal Gomes
dc.contributor.author	Rodrigues, Ana João
dc.contributor.author	Sousa, Nuno
dc.contributor.author	Carelli, Pedro V.
dc.contributor.author	Copelli, Mauro
dc.date.accessioned	2019-05-24T19:23:20Z
dc.date.available	2019-05-24T19:23:20Z
dc.date.issued	2019-05-21
dc.description.resumo	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.	pt_BR
dc.identifier.doi	https://doi.org/10.1103/PhysRevLett.122.208101
dc.identifier.uri	https://repositorio.ufrn.br/handle/123456789/27099
dc.language	en	pt_BR
dc.subject	Cortical States	pt_BR
dc.subject	Neuronal avalanches	pt_BR
dc.subject	Phase transitions	pt_BR
dc.title	Criticality between Cortical States	pt_BR
dc.type	article	pt_BR