Vowel production in hearing impaired children: A comparison between normal-hearing, hearing-aided and cochlear-implanted children

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...

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Bibliographic Details
Published in:Acta otorrinolaringológica española (English) 2019-09, Vol.70 (5), p.251-257
Main Authors: Núñez-Batalla, Faustino, Vasile, Gabriela, Cartón-Corona, Noelia, Pedregal-Mallo, Daniel, Menéndez de Castro, Marta, Guntín García, Maite, Gómez-Martínez, Justo, Carro Fernández, Pilar, Llorente-Pendás, Jose Luis
Format: Article
Language:eng ; spa
Subjects:
Articulation Disorders - etiology
Articulation Disorders - physiopathology
Child
Child, Preschool
Cochlear Implants
Feedback, Sensory
Female
Hearing Aids
Hearing Loss - complications
Hearing Loss - physiopathology
Hearing Loss - rehabilitation
Humans
Male
Persons With Hearing Impairments
Phonetics
Speech Acoustics
Speech Production Measurement
Voice Quality
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Summary: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. 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. 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. Both prelingually hearing-impaired groups tended toward subtle deviations in the articulation of vowels that could be analyzed using an objective acoustic analysis programme.
ISSN:2173-5735
DOI:10.1016/j.otorri.2018.05.004