Parkinson's disease delays predictable visual cue processing without affecting complex and unpredictable visual cue processing in postural control

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dc.contributor.authorCruz, Caio Ferraz
dc.contributor.authorForti Barela, Ana Maria
dc.contributor.authorDona, Flavia
dc.contributor.authorGenoves, Giovanna Gracioli
dc.contributor.authorFerraz, Henrique Ballalai
dc.contributor.authorCesar de Azevedo Silva, Sonia Maria
dc.contributor.authorBarela, Jose Angelo [UNESP]
dc.contributor.institutionCruzeiro Univ
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.contributor.institutionState Publ Server Hosp
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2021-06-25T23:35:04Z
dc.date.available2021-06-25T23:35:04Z
dc.date.issued2021-01-15
dc.description.abstractThis study examined the influence of visual information of different complexities and predictability on the body sway of individuals with Parkinson's disease (PD) during upright stance. Twenty-one individuals at initial stages of PD (62.1 +/- 7.2 years), under dopaminergic medication, and 21 controls (62.3 +/- 7.1 years) stood inside a moving room, performing 10 trials of 60 s. In the first trial, the room remained motionless. Then, the room oscillated in an anterior-posterior direction. There were three blocks of three trials. In the first block, the room oscillated at 0.2 Hz (periodic simple condition); in the second block, periodic frequencies of 0.1, 0.3, and 0.5 Hz were combined (periodic complex condition); in the third block, non-periodic frequencies of 0.1, 0.3, and 0.5 Hz were combined (non-periodic complex condition). Participants were not informed about the room movement. The displacement of the room and trunk were registered using an OPTOTRAK system. Postural sway was examined using mean sway amplitude, and the relationship between visual information and body sway used coherence, gain, and phase. There was no group difference when the room remained motionless. Upon visual manipulation, the PD group displayed larger sway magnitude in the non-periodic complex condition. Individuals with PD also lagged behind the moving room (lower phase values) compared to controls, only in the periodic simple condition. In the remaining measures, there was no group difference. These results suggest that individuals with PD use complex and unpredictable visual information, similar to controls, during upright stance. However, PD might affect the predictable visual cues processing.en
dc.description.affiliationCruzeiro Univ, Inst Phys Act & Sport Sci, Sao Paulo, SP, Brazil
dc.description.affiliationUniv Sao Paulo, Sch Arts Sci & Humanities, Rua Arlindo Bettio 1000, BR-03828000 Sao Paulo, SP, Brazil
dc.description.affiliationUniv Fed Sao Paulo, Movement Disorder Sect, Sao Paulo, SP, Brazil
dc.description.affiliationState Publ Server Hosp, Movement Disorders Sect, Sao Paulo, SP, Brazil
dc.description.affiliationSao Paulo State Univ, Inst Biosci, Rio Claro, SP, Brazil
dc.description.affiliationUnespSao Paulo State Univ, Inst Biosci, Rio Claro, SP, Brazil
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdCAPES: 001
dc.description.sponsorshipIdFAPESP: 2016/06292-1
dc.format.extent7
dc.identifierhttp://dx.doi.org/10.1016/j.brainres.2020.147209
dc.identifier.citationBrain Research. Amsterdam: Elsevier, v. 1751, 7 p., 2021.
dc.identifier.doi10.1016/j.brainres.2020.147209
dc.identifier.issn0006-8993
dc.identifier.urihttp://hdl.handle.net/11449/210596
dc.identifier.wosWOS:000600598100028
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofBrain Research
dc.sourceWeb of Science
dc.subjectVisual-motor coupling
dc.subjectComplexity
dc.subjectPredictability
dc.subjectPosture
dc.subjectVision
dc.titleParkinson's disease delays predictable visual cue processing without affecting complex and unpredictable visual cue processing in postural controlen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.orcid0000-0002-6737-8708[1]
unesp.author.orcid0000-0002-9138-4438[3]

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