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Original Article

Comparison of the overall intelligibility, articulation, resonance, and voice characteristics between children using cochlear implants and those using bilateral hearing aids: A pilot study

Comparación de la inteligibilidad global, la articulación, la resonancia y las características de la voz entre niños con implante coclear y niños con auxiliar auditivo bilateral: un estudio piloto

, PhD, , , &
Pages 452-465 | Received 04 Feb 2005, Published online: 07 Jul 2009
 

Abstract

The purpose of this study was to determine and to compare the overall intelligibility, articulation, resonance, and voice characteristics in children using cochlear implants (CI) and children using conventional hearing aids (HA). Nine prelingually deaf children using CI and six children with a prelingual severe hearing loss using HA, were selected to participate. Objective (DSI, nasalance scores) as well as subjective assessment techniques (perceptual evaluations) were used. Both the CI and HA children demonstrated normal vocal quality and resonance but showed the presence of articulation disorders. In the CI children, intelligibility was significantly better compared to the HA children. Significantly more phonetic and phonological disorders were present in the HA children. The results of this study show a poorer intelligibility of the HA children in comparison with the CI children which is probably due to the occurrence of significantly more phonetic and phonological disorders. Future detailed analysis in a larger sample of CI and HA children may help further clarify the issue of speech and voice characteristics and may demonstrate an important prognostic value.

Sumario

El objetivo de este estudio fue determinar y comparar la inteligibilidad global, la articulación, la resonancia y las características de la voz en niños con implante coclear (CI) y niños que usan auxiliares auditivos convencionales (HA). Se seleccionaron para participar nueve niños sordos prelingüísticos con CI y 6 niños con hipoacusia severa prelingüística que usaban HA. Se utilizaron técnicas de evaluación objetivas (DSI, puntuación de nasalidad) y subjetivas (evaluaciones perceptuales). Ambos grupos demostraron calidad vocal y resonancia normales, pero con fallas articulatorias. La inteligibilidad fue significativamente mejor en el grupo de CI. El grupo de HA presentó en forma significativa más alteraciones fonéticas y fonológicas. El resultado de este estudio muestra una inteligibilidad más pobre en los niños con HA en comparación con los niños con CI, lo que probablemente se deba al mayor número de errores fonéticos y fonológicos. Un análisis detallado en el futuro con una muestra más amplia de niños con CI y HA puede ayudar a clarificar el tema de las características del habla y la voz y puede manifestarse como podría demostrar un valor pronóstico importante.

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