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Anticipated synchronization in human EEG data: unidirectional causality with negative phase-lag

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dc.contributor.authorCarlos, Francisco-Leandro P.
dc.contributor.authorUbirakitan, Maciel Monteiro
dc.contributor.authorRodrigues, Marcelo Cairrão Araújo
dc.contributor.authorAguilar Domingo, Moisés
dc.contributor.authorHerrera-Gutiérrez, Eva
dc.contributor.authorGómez Amor, Jesús
dc.contributor.authorCopelli, Mauro
dc.contributor.authorCarelli, Pedro V.
dc.contributor.authorMatias, Fernanda S.
dc.contributor.departmentPsicología Evolutiva y de la Educación
dc.contributor.otherFacultades de la UMU::Facultad de Educación
dc.date.accessioned2026-01-29T15:27:19Z
dc.date.available2026-01-29T15:27:19Z
dc.date.copyright©2020 American Physical Society
dc.date.issued2020-07-15
dc.description.abstractUnderstanding the functional connectivity of the brain has become a major goal of neuroscience. In many situations the relative phase difference, together with coherence patterns, has been employed to infer the direction of the information flow. However, it has been recently shown in local field potential data from monkeys the existence of a synchronized regime in which unidirectionally coupled areas can present both positive and negative phase differences. During the counterintuitive regime, called anticipated synchronization (AS), the phase difference does not reflect the causality. Here we investigate coherence and causality at the alpha frequency band (f∼10 Hz) between pairs of electroencephalogram (EEG) electrodes in humans during a GO/NO-GO task. We show that human EEG signals can exhibit anticipated synchronization, which is characterized by a unidirectional influence from an electrode A to an electrode B, but the electrode B leads the electrode A in time. To the best of our knowledge, this is the first verification of AS in EEG signals and in the human brain. The usual delayed synchronization (DS) regime is also present between many pairs. DS is characterized by a unidirectional influence from an electrode A to an electrode B and a positive phase difference between A and B which indicates that the electrode A leads the electrode B in time. Moreover we show that EEG signals exhibit diversity in the phase relations: the pairs of electrodes can present in-phase, antiphase, or out-of-phase synchronization with a similar distribution of positive and negative phase differences.
dc.formatapplication/pdf
dc.format.extent10
dc.identifier.citationPhysical Review E, 2020, Vol. 102, Issue 3, 032216
dc.identifier.doihttps://doi.org/10.1103/PhysRevE.102.032216
dc.identifier.eissn2470-0053
dc.identifier.issn2470-0045
dc.identifier.urihttp://hdl.handle.net/10201/197330
dc.languageeng
dc.publisherAmerican Physical Society
dc.relationThe authors thank CNPq (Grants No. 432429/2016-6, No. 425329/2018-6, No. 301744/2018-1), CAPES (Grants No. 88881.120309/2016-01, No. 23038.003382/2018-39), FACEPE (Grants No. APQ-0642-1.05/18, No. APQ-0826-1.05/15), FAPEAL, UFAL and UFPE for financial support. This paper was produced as part of the activities of Research, Innovation and Dissemination Center for Neuromathematics (Grant No. 2013/07699-0, S. Paulo Research Foundation FAPESP).
dc.relation.publisherversionhttps://journals.aps.org/pre/abstract/10.1103/PhysRevE.102.032216
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subject.odsNo relacionado con ningún objetivo de desarrollo sostenible
dc.titleAnticipated synchronization in human EEG data: unidirectional causality with negative phase-lag
dc.typeinfo:eu-repo/semantics/article
dc.type.versioninfo:eu-repo/semantics/acceptedVersion
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relation.isAuthorOfPublicationa9592cad-b39a-42b3-945e-307f5e21505d
relation.isAuthorOfPublication.latestForDiscoverya9592cad-b39a-42b3-945e-307f5e21505d
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