Communication through coherence by means of cross-frequency coupling

González, Joaquín; Cavelli, Matias; Mondino, Alejandra; Rubido, Nicolás; Tort, Adriano Bretanha Lopes; Torterolo, Pablo

Communication through coherence by means of cross-frequency coupling

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dc.contributor.author	González, Joaquín
dc.contributor.author	Cavelli, Matias
dc.contributor.author	Mondino, Alejandra
dc.contributor.author	Rubido, Nicolás
dc.contributor.author	Tort, Adriano Bretanha Lopes
dc.contributor.author	Torterolo, Pablo
dc.date.accessioned	2020-09-22T18:08:02Z
dc.date.available	2020-09-22T18:08:02Z
dc.date.issued	2020-09
dc.description.resumo	The theory of communication through coherence (CTC) posits the synchronization of brain oscillations as a key mechanism for information sharing and perceptual binding. In a parallel literature, hippocampal theta activity (4 - 10 Hz) has been shown to modulate the appearance of neocortical fast gamma oscillations (100 - 150 Hz), a phenomenon known as cross-frequency coupling (CFC). Even though CFC has also been previously associated with information routing, it remains to be determined whether it directly relates to CTC. In particular, for the theta-fast gamma example at hand, a critical question is to know if the phase of the theta cycle influences gamma synchronization across the neocortex. To answer this question, we combined CFC (modulation index) and CTC (phase-locking value) metrics in order to detect the modulation of the cross-regional high-frequency synchronization by the phase of slower oscillations. Upon applying this method, we found that the inter-hemispheric synchronization of neocortical fast gamma during REM sleep depends on the instantaneous phase of the theta rhythm. These results show that CFC is likely to aid long-range information transfer by facilitating the synchronization of faster rhythms, thus consistent with classical CTC views	pt_BR
dc.identifier.citation	GONZÁLEZ, J.; CAVELLI, M.; MONDINO, A.; RUBIDO, N.; TORT, A. B. L.; TORTEROLO, P. Communication through coherence by means of cross-frequency coupling. Neuroscience, [S. l.], p. S0306-4522(20)30593-5, set. 2020. doi: 10.1016/j.neuroscience.2020.09.019. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0306452220305935?via%3Dihub. Acesso em: 22 set. 2020.	pt_BR
dc.identifier.doi	10.1016/j.neuroscience.2020.09.019
dc.identifier.uri	https://repositorio.ufrn.br/jspui/handle/123456789/30158
dc.language	en	pt_BR
dc.publisher	Elsevier	pt_BR
dc.rights	Attribution-NonCommercial-NoDerivs 3.0 Brazil	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/br/	*
dc.subject	REM sleep	pt_BR
dc.subject	In vivo electrophysiology	pt_BR
dc.subject	Neuronal oscillations	pt_BR
dc.subject	Phase-amplitude coupling	pt_BR
dc.subject	Systems neuroscience	pt_BR
dc.title	Communication through coherence by means of cross-frequency coupling	pt_BR
dc.type	article	pt_BR