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Residual signal auto-correlation to evaluate speech in Parkinson's disease patients

dc.contributor.authorPereira, Jose Carlos
dc.contributor.authorSchelp, Arthur Oscar
dc.contributor.authorMontagnoli, Arlindo Neto
dc.contributor.authorGatto, Ana Rita
dc.contributor.authorSpadotto, Andre Augusto
dc.contributor.authorde Carvalho, Lidia Raquel
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:29:53Z
dc.date.available2014-05-20T15:29:53Z
dc.date.issued2006-12-01
dc.description.abstractObjective: To evaluate the maximum residual signal auto-correlation also known as pitch amplitude (PA) values in patients with Parkinson's disease (PD) patients. Method. The signals of 21 Parkinson's patients were compared with 15 healthy individuals, divided according age and gender. Results: Statistical difference was seen between groups for PA, 0.39 for controls and 0.25 for PD. Normal value threshold was set as 0.3; (p <= 0.001). In the Parkinson's group 80.77%, and in the control group only 12.28%, had a PA < 0.3 demonstrating an association between these variables. The dispersion diagram for age and PA for PD individuals showed p=0.01 and r=0.54. There was no significant difference in relation to gender and PA between groups: Conclusion: the significant differences in pitch's amplitude between PD patients and healthy individuals demonstrate the methods specificity.-The results showed the need of prospective controlled studies,to improve the use and indications of residual signal auto-correlation to evaluate speech in PD patients.en
dc.description.affiliationUniv São Paulo, Sch Engn, São Paulo, Brazil
dc.description.affiliationUNESP, Sch Med Botucatu, São Paulo, Brazil
dc.description.affiliationHosp UNESP, Botucatu, SP, Brazil
dc.description.affiliationUniv São Paulo, Sch Engn, BR-13560 Sao Carlos, Brazil
dc.description.affiliationUniv Estadual Paulista Julio Mesquita Filho, Biosci Sch, Botucatu, SP, Brazil
dc.description.affiliationUnespUNESP, Sch Med Botucatu, São Paulo, Brazil
dc.description.affiliationUnespHosp UNESP, Botucatu, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista Julio Mesquita Filho, Biosci Sch, Botucatu, SP, Brazil
dc.format.extent912-915
dc.identifierhttp://dx.doi.org/10.1590/S0004-282X2006000600004
dc.identifier.citationArquivos de Neuro-psiquiatria. São Paulo Sp: Associação Arquivos de Neuro- Psiquiatria, v. 64, n. 4, p. 912-915, 2006.
dc.identifier.doi10.1590/S0004-282X2006000600004
dc.identifier.fileWOS000242770500004.pdf
dc.identifier.issn0004-282X
dc.identifier.scieloS0004-282X2006000600004
dc.identifier.urihttp://hdl.handle.net/11449/39364
dc.identifier.wosWOS:000242770500004
dc.language.isoeng
dc.publisherAssociação Arquivos de Neuro- Psiquiatria
dc.relation.ispartofArquivos de Neuro-Psiquiatria
dc.relation.ispartofjcr1.015
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectParkinson's diseasept
dc.subjectspeech analysispt
dc.subjectresidual signalpt
dc.titleResidual signal auto-correlation to evaluate speech in Parkinson's disease patientsen
dc.typeArtigo
dcterms.licensehttp://www.scielo.br/revistas/anp/iaboutj.htm
dcterms.rightsHolderAssociação Arquivos de Neuro- Psiquiatria
dspace.entity.typePublication
unesp.author.lattes5248388716505709[2]
unesp.author.orcid0000-0001-5928-7497[2]

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