[Lombard's effect's implication in intensity, fundamental frequency and stability on the voice of individuals with Parkinson's disease.]

[Lombard's effect's implication in intensity, fundamental frequency and stability on the voice of individuals with Parkinson's disease.] Research Abstract Details 

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[Lombard's effect's implication in intensity, fundamental frequency and stability on the voice of individuals with Parkinson's disease.] Abstract Text:

Araken Quedas, Duprat,Gisele Gasparini,Araken Quedas, Duprat,Gisele Gasparini,

Parkinson's disease affects the central nervous system resulting in voice quality alterations. It is typically resistant to drug therapy and often persists despite extensive behavioural speech and language therapy. Previous findings show that masking noise will produce a consistent increase in voice intensity in most normal individuals (Lombard's effect). AIM: we evaluated Lombard's effect's implication in intensity, fundamental frequency and stability on the voice of individuals with Parkinson's disease (N=17). MATERIAL AND METHODS: through acoustic analysis, we evaluated intensity alterations and fundamental frequency, before and after white masking noise 40, 70 and 90 dBSL intensities, as well as variations during each vocalization and compared with a control group (N=16). RESULTS: voice intensity varied according to masking intensity, tending to non-linear increases in both groups and gender. Fundamental frequency varied, tending to non-linear increase in both groups and gender. Improvement stability occurred in fundamental frequency and vocal intensity. CONCLUSION: Lombard's effect increased intensity, fundamental frequency and improves voice stability on these patients. Study: clinical and experimental.

[Lombard's effect's implication in intensity, fundamental frequency and stability on the voice of individuals with Parkinson's disease.] Publishing Authors By Initials

A Quedas,Ade Duprat,G Gasparini,A Quedas,Ade Duprat,G Gasparini,

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PUBMED ID PMID:

MEDLINE DATE: 2007 Sep-Oct

[Lombard's effect's implication in intensity, fundamental frequency and stability on the voice of individuals with Parkinson's disease.] Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Revista brasileira de otorrinolaringologia (Englis

VOLUME: 73

Page Numbers: 675-83

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ISSN: 1808-8694

DAY: 20

MONTH: 12

YEAR: 2007

[Lombard's effect's implication in intensity, fundamental frequency and stability on the voice of individuals with Parkinson's disease.] Information

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LANGUAGE: por

NlmUniqueID: 101207337

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AFFILIATION: Departamento de Otorrinolaringologia, Faculdade de Ciências Médicas, Santa Casa de São PauloCentro de Estudos da Voz.

Country: Brazil

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MEDLINETA: Rev Bras Otorrinolaringol (Eng

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