Olfactory bulb drives respiration-coupled beta oscillations in the rat hippocampus

Detalhes bibliográficos
Autor(a) principal: Lockmann, André LV
Data de Publicação: 2017
Outros Autores: Laplagne, Diego Andrés, Tort, Adriano Bretanha Lopes
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRN
Texto Completo: https://repositorio.ufrn.br/jspui/handle/123456789/23829
Resumo: 2018-09-22
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spelling Lockmann, André LVLaplagne, Diego AndrésTort, Adriano Bretanha Lopes2017-09-11T16:48:08Z2017-08-22https://repositorio.ufrn.br/jspui/handle/123456789/2382910.1111/ejn.13665enggranger causalitybrain oscillationscross-frequency couplinglocal field potentialsphase coherenceOlfactory bulb drives respiration-coupled beta oscillations in the rat hippocampusinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article2018-09-22The synchronization of neuronal oscillations has been suggested as a mechanism to coordinate information flow between distant brain regions. In particular, the olfactory bulb (OB) and the hippocampus (HPC) have been shown to exhibit oscillations in the beta frequency range (10-20 Hz) that are likely to support communication between these structures. Here we further characterize features of beta oscillations in OB and HPC of rats anesthetized with urethane. We find that beta oscillations simultaneously appear in HPC and OB and phase-lock across structures. Moreover, Granger causality analysis reveals that OB beta activity drives HPC beta. The laminar voltage profile of beta in HPC shows the maximum amplitude in the dentate gyrus, spatially coinciding with olfactory inputs to this region. Finally, we also find that the respiratory cycle and respiration-coupled field potential rhythms (1-2 Hz) - but not theta oscillations (3-5 Hz) - modulate beta amplitude in OB and HPC. In all, our results support the hypothesis that beta activity mediates the communication between olfactory and hippocampal circuits in the rodent brain. This article is protected by copyright. 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dc.title.pt_BR.fl_str_mv Olfactory bulb drives respiration-coupled beta oscillations in the rat hippocampus
title Olfactory bulb drives respiration-coupled beta oscillations in the rat hippocampus
spellingShingle Olfactory bulb drives respiration-coupled beta oscillations in the rat hippocampus
Lockmann, André LV
granger causality
brain oscillations
cross-frequency coupling
local field potentials
phase coherence
title_short Olfactory bulb drives respiration-coupled beta oscillations in the rat hippocampus
title_full Olfactory bulb drives respiration-coupled beta oscillations in the rat hippocampus
title_fullStr Olfactory bulb drives respiration-coupled beta oscillations in the rat hippocampus
title_full_unstemmed Olfactory bulb drives respiration-coupled beta oscillations in the rat hippocampus
title_sort Olfactory bulb drives respiration-coupled beta oscillations in the rat hippocampus
author Lockmann, André LV
author_facet Lockmann, André LV
Laplagne, Diego Andrés
Tort, Adriano Bretanha Lopes
author_role author
author2 Laplagne, Diego Andrés
Tort, Adriano Bretanha Lopes
author2_role author
author
dc.contributor.author.fl_str_mv Lockmann, André LV
Laplagne, Diego Andrés
Tort, Adriano Bretanha Lopes
dc.subject.por.fl_str_mv granger causality
brain oscillations
cross-frequency coupling
local field potentials
phase coherence
topic granger causality
brain oscillations
cross-frequency coupling
local field potentials
phase coherence
description 2018-09-22
publishDate 2017
dc.date.accessioned.fl_str_mv 2017-09-11T16:48:08Z
dc.date.issued.fl_str_mv 2017-08-22
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://repositorio.ufrn.br/jspui/handle/123456789/23829
dc.identifier.doi.none.fl_str_mv 10.1111/ejn.13665
url https://repositorio.ufrn.br/jspui/handle/123456789/23829
identifier_str_mv 10.1111/ejn.13665
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFRN
instname:Universidade Federal do Rio Grande do Norte (UFRN)
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instname_str Universidade Federal do Rio Grande do Norte (UFRN)
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reponame_str Repositório Institucional da UFRN
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