3 years ago

Comparación de la producción vocal en niños con hipoacusia prelocutiva con adaptación audioprotésica e implante coclear con normooyentes

Faustino Núñez-batalla, Gabriela Vasile, Noelia Cartón-corona, Daniel Pedregal-mallo, Marta Menéndez De Castro, Maite Guntín García, Justo Gómez-martínez, Pilar Carro Fernández, Jose Luis Llorente-pendás

Publication date: Available online 4 August 2018

Source: Acta Otorrinolaringológica Española

Author(s): Faustino Núñez-Batalla, Gabriela Vasile, Noelia Cartón-Corona, Daniel Pedregal-Mallo, Marta Menéndez de Castro, Maite Guntín García, Justo Gómez-Martínez, Pilar Carro Fernández, Jose Luis Llorente-Pendás

Resumen
Introducción y objetivos

La inadecuada retroalimentación auditiva en los niños con hipoacusia prelocutiva altera la articulación de consonantes y vocales.

El propósito de esta investigación es comparar la producción de vocales en niños hipoacúsicos hispanohablantes con implante coclear o adaptación audioprotésica con niños normooyentes por medio del análisis acústico de las frecuencias formánticas y el espacio vocal.

Método

Un total de 56 niños con hipoacusia prelocutiva (25 con implante coclear y 31 con audífonos) y 47 niños normooyentes participaron en el estudio. Los 2 primeros formantes (F1 y F2) de las 5 vocales del idioma español se midieron utilizando el programa Praat. Para analizar las diferencias entre los 3 grupos se aplicó el método ANOVA de análisis de la varianza y el test de Scheffé. También se calculó el área del espacio vocal.

Resultados

El valor medio del F1 en todas las vocales no mostró diferencias significativas en los 3 grupos de niños. Para las vocales /i/, /o/ y /u/ el valor medio del F2 fue significativamente diferente entre los 2 grupos de niños hipoacúsicos y el grupo de niños normooyentes.

Conclusión

Ambos grupos de niños con hipoacusia prelocutiva tienden a presentar sutiles desviaciones en la articulación de las vocales que pueden ser analizadas mediante un programa de análisis acústico.

Abstract
Introduction and objectives

Inadequate auditory feedback in prelingually deaf children alters the articulation of consonants and vowels.

The purpose of this investigation was to compare vowel production in Spanish-speaking deaf children with cochlear implantation, and with hearing-aids with normal-hearing children by means of acoustic analysis of formant frequencies and vowel space.

Methods

A total of 56 prelingually deaf children (25 with cochlear implants and 31 wearing hearing-aids) and 47 normal-hearing children participated. The first 2 formants (F1 and F2) of the five Spanish vowels were measured using Praat software. One-way analysis of variance (ANOVA) and post hoc Scheffé test were applied to analyze the differences between the 3 groups. The surface area of the vowel space was also calculated.

Results

The mean value of F1 in all vowels was not significantly different between the 3 groups. For vowels /i/, /o/ and /u/, the mean value of F2 was significantly different between the 2 groups of deaf children and their normal-hearing peers.

Conclusion

Both prelingually hearing-impaired groups tended toward subtle deviations in the articulation of vowels that could be analyzed using an objective acoustic analysis programme.

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