Detalhes bibliográficos
| Ano de defesa: |
2010 |
| Autor(a) principal: |
Catisani, Fernanda
 |
| Orientador(a): |
Andrada e Silva, Marta Assumpção de |
| Banca de defesa: |
Não Informado pela instituição |
| Tipo de documento: |
Dissertação
|
| Tipo de acesso: |
Acesso aberto |
| Idioma: |
por |
| Instituição de defesa: |
Pontifícia Universidade Católica de São Paulo
|
| Programa de Pós-Graduação: |
Programa de Estudos Pós-Graduados em Fonoaudiologia
|
| Departamento: |
Fonoaudiologia
|
| País: |
BR
|
| Palavras-chave em Português: |
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| Palavras-chave em Inglês: |
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| Área do conhecimento CNPq: |
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| Link de acesso: |
https://tede2.pucsp.br/handle/handle/12280
|
Resumo: |
INTRODUCTION: the age group in between 8 and 10 years of age is responsible for the highest incidence of voice disorders. Thus, it is important to attempt to find a pattern for acoustic parameters of children s voices, since these parameters may aid in the diagnosis of vocal disorders. AIM: to investigate the fundamental frequency (f0) values in a group of children from Minas Gerais, of both sexes, in between 8 and 10 years of age, without vocal disorder, as perceived through perceptual-auditory assessment. METHODS: in this study, 251 children of both sexes, in between 8 and 10 years of age were recorded. Of these, 43 were excluded from the study as they presented vocal disorders according to evaluation by the GRBASI scale, and 9 others were excluded for being considered outliers by statistical analysis. The final sample in this study was composed of 199 children, 104 boys and 95 girls. The material recorded for analysis was: sustained vowels [a, ε, i], chained speech (counting) and story-telling (semi-directed speech) from a children s book without words. The story-telling allowed for f0 assessment through the repetition of the word /amarelo/, with the selection of 6 periodic pulses of the segment [a]. Acoustic analysis was performed using software PRAAT 4.7 (version 5.0). RESULTS: the overall sample showed f0 values of 235.51 Hz, 233.92 Hz for the boys and 237.25 Hz for the girls. When stratifying ages 8, 9 and 10 the results for the boys in each age group were, respectively, 242.20 Hz, 236.72 Hz and 225.88 Hz. For the girls the results were 241.61 Hz for the 8-year olds, 233.88 Hz for 9 and 238.63 Hz for 10- year olds. There was no statistically significant difference between sex and age. However, when comparing ages within the same sex, there was a statistically significant difference between boys aged 8 and 10. Moreover, it was observed that girls have higher f0 values than boys, and that there is a decrease in f0 as age progresses in both sexes. The results were in agreement with the mean values found in national and international Literature, which are 236 Hz and 237 Hz. CONCLUSION: in the studied group of children, the expected f0 values were obtained for each age group. There were no statistically significant values of differences between sexes and age groups. However, there was a reduction in f0 values with the increase in age |
