Age-related differences in EEG beta activity during an assessment of ankle proprioception

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dc.contributor.authorToledo, Diana R.
dc.contributor.authorBarela, Jose A. [UNESP]
dc.contributor.authorManzano, Gilberto M.
dc.contributor.authorKohn, Andre F.
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniv Cruzeiro Sul
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.date.accessioned2018-11-27T16:00:00Z
dc.date.available2018-11-27T16:00:00Z
dc.date.issued2016-05-27
dc.description.abstractThe aim of this work was to compare cortical beta oscillatory activity between young (YA) and older (OA) adults during the assessment of ankle proprioception. We analyzed the response time (RT) to kinesthetic perception and beta event-related desynchronization/synchronization (ERD/ERS) in response to passive ankle movement applied at a slow speed, 0.5 degrees/s. The relationship between ERD/ERS and RT was investigated by classifying the signals into fast-, medium-, and slow-RT. The results showed a temporal relationship between beta oscillation changes and RT for both groups, i.e., earlier ERD and ERS were obtained for trials with faster response time. ERD was larger and delayed in OA compared to the YA, and beta ERS was present only for OA. These findings suggest that a less efficient proprioceptive signaling reaching the brain of OA requires a higher level of brain processing and hence the differences in ERD potentials between YA and OA. Furthermore, the occurrence of ERS in OA might represent a compensatory strategy of active cortical resetting for adequate sensorimotor behavior due to the age-related reduced peripheral input and neuromuscular impairments. Altered balance between excitatory and inhibitory intracortical activity in older adults presumably explains the changes in beta oscillations. (C) 2016 Elsevier Ireland Ltd. All rights reserved.en
dc.description.affiliationUniv Sao Paulo, EPUSP, PTC, Neurosci Program, Sao Paulo, Brazil
dc.description.affiliationUniv Sao Paulo, EPUSP, PTC, Biomed Engn Lab, Sao Paulo, Brazil
dc.description.affiliationUniv Cruzeiro Sul, Inst Phys Act & Sport Sci, Sao Paulo, Brazil
dc.description.affiliationSao Paulo State Univ, Inst Biosci, Rio Claro, Brazil
dc.description.affiliationUniv Fed Sao Paulo, Div Neurol, Sao Paulo, Brazil
dc.description.affiliationUnespSao Paulo State Univ, Inst Biosci, Rio Claro, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdFAPESP: 2011/17193-0
dc.description.sponsorshipIdFAPESP: 2009/09286-9
dc.description.sponsorshipIdFAPESP: 2013/14667-7
dc.description.sponsorshipIdFAPESP: 2014/11300-8
dc.description.sponsorshipIdCNPq: 303313/2011-0
dc.format.extent1-5
dc.identifierhttp://dx.doi.org/10.1016/j.neulet.2016.04.028
dc.identifier.citationNeuroscience Letters. Clare: Elsevier Ireland Ltd, v. 622, p. 1-5, 2016.
dc.identifier.doi10.1016/j.neulet.2016.04.028
dc.identifier.fileWOS000376834300001.pdf
dc.identifier.issn0304-3940
dc.identifier.urihttp://hdl.handle.net/11449/165183
dc.identifier.wosWOS:000376834300001
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofNeuroscience Letters
dc.relation.ispartofsjr0,946
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectEvent-related (de-)synchronization (ERD/S)
dc.subjectSlow passive movement
dc.subjectResponse time
dc.subjectProprioception
dc.subjectAging
dc.subjectElectroencephalography
dc.titleAge-related differences in EEG beta activity during an assessment of ankle proprioceptionen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.

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