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Correlatos perceptivos e acústicos dos ajustes supraglóticos na disfonia

Authors: Magri, Aline; Cukier-Blaj, Sabrina; Karman, Delmira de Fraga e; Camargo, Zuleica Antonia de;

Correlatos perceptivos e acústicos dos ajustes supraglóticos na disfonia

Abstract

OBJETIVO: avaliar os correlatos perceptivo-auditivos (ajustes supraglóticos) e acústicos (formantes) da qualidade vocal de indivíduos disfônicos com alterações glóticas, atendidos em ambulatório de fonoaudiologia de uma instituição hospitalar da cidade de São Paulo. MÉTODOS: o grupo estudado foi representado por amostras de voz de 20 indivíduos disfônicos com idades variadas entre 30 e 65 anos do sexo feminino (atendidos em um hospital da cidade de São Paulo) e julgamentos perceptivo-auditivos da qualidade vocal por amostras avaliadas previamente por um grupo de juízes em atividade clínica. As amostras foram exploradas quanto à freqüência dos três primeiros formantes (F1, F2 e F3). Os valores foram considerados de forma qualitativa (comparados aos dados da análise perceptivo-auditiva) e quantitativa (teste Qui-quadrado). RESULTADOS: os ajustes de qualidade vocal mais freqüentes foram laringe baixa, mandíbula fechada, lábios arredondados, corpo de língua abaixado, corpo de língua retraído, labiodentalização. Diferenças estatisticamente significantes foram encontradas para os valores de freqüência de F1 para os vocábulos "cata" (864 Hz) e "gata" (814 Hz), p=0 e F3 para os vocábulos "cata" (2598 Hz) e "gata" (2660 Hz), p=0,17 dos indivíduos do grupo estudado em relação aos valores de referência para o Português-Brasileiro. CONCLUSÃO: os ajustes de qualidade vocal identificados encontraram correspondência com a diminuição dos valores de F1 e F3 indicando tendências de ajustes do trato vocal.

Keywords

Voice Disorders, Medida da Produção da Fala, Speech Production Measurement, Voice Quality, Acústica da Fala, Auditory Perception, Distúrbios da Voz, Percepção Auditiva, Speech Acoustics, Qualidade da Voz

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
10
Average
Top 10%
Top 10%
Green
gold