Alpha band EEG coherence in healthy nonagenarians

Detalhes bibliográficos
Autor(a) principal: Jorge,Mario Silva
Data de Publicação: 2017
Outros Autores: Spindola,Livia, Katata,Joyce Haruyo Biancon, Anghinah,Renato
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Arquivos de neuro-psiquiatria (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2017000900609
Resumo: ABSTRACT Electroencephalographic (EEG) coherence is a parameter that enables evaluation of cerebral connectivity. It may be related to the functional state of the brain. In the elderly, it may reflect the neuronal loss caused by aging. Objective To describe characteristics of coherence in nonagenarians. Methods We evaluated interhemispheric coherence for the alpha band in 42 cognitively normal individuals aged 90 to 101 years. Coherence values in the occipital electrode (O1O2), in the resting state with closed eyes, were calculated by means of spectral analysis using digital EEG EMSA 32 channels, 12 bits and a frequency of 200 Hz. Results The mean coherence value for the alpha band at O1O2 was 0.65 (SD 0.13). No significant differences were found between men and women. Conclusions The findings from this study did not show any decrease in interhemispheric coherence for the alpha band in cognitively normal nonagenarians. This may be useful as a standard value for this age group.
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spelling Alpha band EEG coherence in healthy nonagenarianselectroencephalographyaged, 80 and overhealth of the elderlyagingABSTRACT Electroencephalographic (EEG) coherence is a parameter that enables evaluation of cerebral connectivity. It may be related to the functional state of the brain. In the elderly, it may reflect the neuronal loss caused by aging. Objective To describe characteristics of coherence in nonagenarians. Methods We evaluated interhemispheric coherence for the alpha band in 42 cognitively normal individuals aged 90 to 101 years. Coherence values in the occipital electrode (O1O2), in the resting state with closed eyes, were calculated by means of spectral analysis using digital EEG EMSA 32 channels, 12 bits and a frequency of 200 Hz. Results The mean coherence value for the alpha band at O1O2 was 0.65 (SD 0.13). No significant differences were found between men and women. Conclusions The findings from this study did not show any decrease in interhemispheric coherence for the alpha band in cognitively normal nonagenarians. This may be useful as a standard value for this age group.Academia Brasileira de Neurologia - ABNEURO2017-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2017000900609Arquivos de Neuro-Psiquiatria v.75 n.9 2017reponame:Arquivos de neuro-psiquiatria (Online)instname:Academia Brasileira de Neurologiainstacron:ABNEURO10.1590/0004-282x20170102info:eu-repo/semantics/openAccessJorge,Mario SilvaSpindola,LiviaKatata,Joyce Haruyo BianconAnghinah,Renatoeng2017-09-20T00:00:00Zoai:scielo:S0004-282X2017000900609Revistahttp://www.scielo.br/anphttps://old.scielo.br/oai/scielo-oai.php||revista.arquivos@abneuro.org1678-42270004-282Xopendoar:2017-09-20T00:00Arquivos de neuro-psiquiatria (Online) - Academia Brasileira de Neurologiafalse
dc.title.none.fl_str_mv Alpha band EEG coherence in healthy nonagenarians
title Alpha band EEG coherence in healthy nonagenarians
spellingShingle Alpha band EEG coherence in healthy nonagenarians
Jorge,Mario Silva
electroencephalography
aged, 80 and over
health of the elderly
aging
title_short Alpha band EEG coherence in healthy nonagenarians
title_full Alpha band EEG coherence in healthy nonagenarians
title_fullStr Alpha band EEG coherence in healthy nonagenarians
title_full_unstemmed Alpha band EEG coherence in healthy nonagenarians
title_sort Alpha band EEG coherence in healthy nonagenarians
author Jorge,Mario Silva
author_facet Jorge,Mario Silva
Spindola,Livia
Katata,Joyce Haruyo Biancon
Anghinah,Renato
author_role author
author2 Spindola,Livia
Katata,Joyce Haruyo Biancon
Anghinah,Renato
author2_role author
author
author
dc.contributor.author.fl_str_mv Jorge,Mario Silva
Spindola,Livia
Katata,Joyce Haruyo Biancon
Anghinah,Renato
dc.subject.por.fl_str_mv electroencephalography
aged, 80 and over
health of the elderly
aging
topic electroencephalography
aged, 80 and over
health of the elderly
aging
description ABSTRACT Electroencephalographic (EEG) coherence is a parameter that enables evaluation of cerebral connectivity. It may be related to the functional state of the brain. In the elderly, it may reflect the neuronal loss caused by aging. Objective To describe characteristics of coherence in nonagenarians. Methods We evaluated interhemispheric coherence for the alpha band in 42 cognitively normal individuals aged 90 to 101 years. Coherence values in the occipital electrode (O1O2), in the resting state with closed eyes, were calculated by means of spectral analysis using digital EEG EMSA 32 channels, 12 bits and a frequency of 200 Hz. Results The mean coherence value for the alpha band at O1O2 was 0.65 (SD 0.13). No significant differences were found between men and women. Conclusions The findings from this study did not show any decrease in interhemispheric coherence for the alpha band in cognitively normal nonagenarians. This may be useful as a standard value for this age group.
publishDate 2017
dc.date.none.fl_str_mv 2017-09-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2017000900609
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2017000900609
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0004-282x20170102
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Academia Brasileira de Neurologia - ABNEURO
publisher.none.fl_str_mv Academia Brasileira de Neurologia - ABNEURO
dc.source.none.fl_str_mv Arquivos de Neuro-Psiquiatria v.75 n.9 2017
reponame:Arquivos de neuro-psiquiatria (Online)
instname:Academia Brasileira de Neurologia
instacron:ABNEURO
instname_str Academia Brasileira de Neurologia
instacron_str ABNEURO
institution ABNEURO
reponame_str Arquivos de neuro-psiquiatria (Online)
collection Arquivos de neuro-psiquiatria (Online)
repository.name.fl_str_mv Arquivos de neuro-psiquiatria (Online) - Academia Brasileira de Neurologia
repository.mail.fl_str_mv ||revista.arquivos@abneuro.org
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