Theta-associated high-frequency oscillations (110–160 Hz) in the hippocampus and neocortex

dc.contributor.authorTort, Adriano Bretanha Lopes
dc.contributor.authorScheffer-Teixeira, Robson
dc.contributor.authorSouza, Bryan C.
dc.contributor.authorDraguhn, Andreas
dc.contributor.authorBrankacˇk, Jurij
dc.date.accessioned2013-02-25T12:15:05Z
dc.date.available2013-02-25T12:15:05Z
dc.date.issued2013
dc.descriptionTORT, A. B. L. ; SCHEFFER-TEIXEIRA, R ; Souza, B.C. ; DRAGUHN, A. ; BRANKACK, J. . Theta-associated high-frequency oscillations (110-160 Hz) in the hippocampus and neocortex. Progress in Neurobiology , v. 100, p. 1-14, 2013.pt_BR
dc.description.abstractWe review recent evidence for a novel type of fast cortical oscillatory activity that occurs circumscribed between 110 and 160 Hz, which we refer to as high-frequency oscillations (HFOs). HFOs characteristically occur modulated by theta phase in the hippocampus and neocortex. HFOs can co-occur with gamma oscillations nested in the same theta cycle, in which case they typically peak at different theta phases. Despite the overlapping frequency ranges, HFOs differ from hippocampal ripple oscillations in some key characteristics, including amplitude, region of occurrence, associated behavioral state, and activity time-course (sustained vs intermittent). Recent in vitro evidence suggests that HFOs depend on fast GABAergic transmission and may also depend on axonal gap junctions. The functional role of HFOs is currently unclear. Both hippocampal and neocortical theta-HFO coupling increase during REM sleep, suggesting a role for HFOs in memory processingpt_BR
dc.identifier.citationTORT, A. B. L. ; SCHEFFER-TEIXEIRA, R ; Souza, B.C. ; DRAGUHN, A. ; BRANKACK, J. (2013)pt_BR
dc.identifier.urihttps://repositorio.ufrn.br/jspui/handle/1/6198
dc.language.isoengpt_BR
dc.rightsAcesso Abertopt_BR
dc.subjectBrain rhythmspt_BR
dc.subjectNeuronal oscillationspt_BR
dc.subjectLocal field potentialpt_BR
dc.subjectPhase-amplitude couplingpt_BR
dc.subjectCross-frequency couplingpt_BR
dc.titleTheta-associated high-frequency oscillations (110–160 Hz) in the hippocampus and neocortexpt_BR
dc.typearticlept_BR

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