Residual signal auto-correlation to evaluate speech in Parkinsons disease patients
Autor(a) principal: | |
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Data de Publicação: | 2006 |
Outros Autores: | , , , , |
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=S0004-282X2006000600004 |
Resumo: | OBJECTIVE: To evaluate the maximum residual signal auto-correlation also known as pitch amplitude (PA) values in patients with Parkinsons disease (PD) patients. METHOD: The signals of 21 Parkinsons 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 Parkinsons 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 pitchs 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. |
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Arquivos de neuro-psiquiatria (Online) |
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|
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Residual signal auto-correlation to evaluate speech in Parkinsons disease patientsParkinsons diseasespeech analysisresidual signalOBJECTIVE: To evaluate the maximum residual signal auto-correlation also known as pitch amplitude (PA) values in patients with Parkinsons disease (PD) patients. METHOD: The signals of 21 Parkinsons 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 Parkinsons 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 pitchs 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.Academia Brasileira de Neurologia - ABNEURO2006-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2006000600004Arquivos de Neuro-Psiquiatria v.64 n.4 2006reponame:Arquivos de neuro-psiquiatria (Online)instname:Academia Brasileira de Neurologiainstacron:ABNEURO10.1590/S0004-282X2006000600004info:eu-repo/semantics/openAccessPereira,José CarlosSchelp,Arthur OscarMontagnoli,Arlindo NetoGatto,Ana RitaSpadotto,André AugustoCarvalho,Lídia Raquel deeng2006-12-21T00:00:00Zoai:scielo:S0004-282X2006000600004Revistahttp://www.scielo.br/anphttps://old.scielo.br/oai/scielo-oai.php||revista.arquivos@abneuro.org1678-42270004-282Xopendoar:2006-12-21T00:00Arquivos de neuro-psiquiatria (Online) - Academia Brasileira de Neurologiafalse |
dc.title.none.fl_str_mv |
Residual signal auto-correlation to evaluate speech in Parkinsons disease patients |
title |
Residual signal auto-correlation to evaluate speech in Parkinsons disease patients |
spellingShingle |
Residual signal auto-correlation to evaluate speech in Parkinsons disease patients Pereira,José Carlos Parkinsons disease speech analysis residual signal |
title_short |
Residual signal auto-correlation to evaluate speech in Parkinsons disease patients |
title_full |
Residual signal auto-correlation to evaluate speech in Parkinsons disease patients |
title_fullStr |
Residual signal auto-correlation to evaluate speech in Parkinsons disease patients |
title_full_unstemmed |
Residual signal auto-correlation to evaluate speech in Parkinsons disease patients |
title_sort |
Residual signal auto-correlation to evaluate speech in Parkinsons disease patients |
author |
Pereira,José Carlos |
author_facet |
Pereira,José Carlos Schelp,Arthur Oscar Montagnoli,Arlindo Neto Gatto,Ana Rita Spadotto,André Augusto Carvalho,Lídia Raquel de |
author_role |
author |
author2 |
Schelp,Arthur Oscar Montagnoli,Arlindo Neto Gatto,Ana Rita Spadotto,André Augusto Carvalho,Lídia Raquel de |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Pereira,José Carlos Schelp,Arthur Oscar Montagnoli,Arlindo Neto Gatto,Ana Rita Spadotto,André Augusto Carvalho,Lídia Raquel de |
dc.subject.por.fl_str_mv |
Parkinsons disease speech analysis residual signal |
topic |
Parkinsons disease speech analysis residual signal |
description |
OBJECTIVE: To evaluate the maximum residual signal auto-correlation also known as pitch amplitude (PA) values in patients with Parkinsons disease (PD) patients. METHOD: The signals of 21 Parkinsons 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 Parkinsons 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 pitchs 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. |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006-12-01 |
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=S0004-282X2006000600004 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2006000600004 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0004-282X2006000600004 |
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.64 n.4 2006 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 |
_version_ |
1754212760770576384 |