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Evaluation of Equivalency in Two Recordings of Monosyllabic Words

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Thirty "new" lists of monosyllabic words were created at the University of Melbourne and recorded by Australian and American English speakers. These new lists and the ten original CNC lists (Peterson and Lehiste, 1962) were used during the feasibility study of the Nucleus Research Platform 8 Cochlear Implant System (Holden et al, 2004). Performance was similar across original and new lists for six implanted Australian subjects; for four implanted U.S. subjects, mean performance was 23 percentage points lower with the new than with the original lists. To evaluate differences between original and new lists for the American English recording, 22 CI recipients were administered all 40 CNC lists (30 new and 10 original lists). The overall mean word score for the new lists was significantly lower (22.3 percentage points) than for the original lists. Acoustic analysis revealed that decreased performance was most likely due to reduced amplitudes of certain initial and final consonants. The new CNC lists can be used as more difficult test material for clinical research. Se crearon treinta "nuevas" listas de palabras monosilábicas en la Universidad de Melbourne, grabadas por hablantes de inglés australiano y americano. Se usaron estas nuevas listas y las diez listas CNC originales (Peterson y Lehiste, 1962) durante el estudio de factibilidad para el Sistema de Implante Coclear Nucleus Research Platform 8 (Holden y col., 2004). Los desempeños fueron similares con las listas originales y las nuevas para seis sujetos australianos implantados; para cuatro sujetos americanos implantados, el desempeño promedio fue 23 puntos porcentuales más bajo con las listas nuevas que con las originales. Para evaluar las diferencias entre las listas nuevas y las originales para la grabación en inglés americano, se le aplicaron todas las 40 listas CNC a 22 portadores de CI (30 listas nuevas y 10 originales). El puntaje global medio para las nuevas listas fue significativamente más bajo (22.3 puntos porcentuales) que para las listas originales: El análisis acústico reveló que el desempeño más pobre era posiblemente debido a amplitudes reducidas de ciertas consonantes iniciales y finales. Las nuevas listas CNC pueden ser utilizadas como un material de prueba más difícil para investigación clínica.
Title: Evaluation of Equivalency in Two Recordings of Monosyllabic Words
Description:
Thirty "new" lists of monosyllabic words were created at the University of Melbourne and recorded by Australian and American English speakers.
These new lists and the ten original CNC lists (Peterson and Lehiste, 1962) were used during the feasibility study of the Nucleus Research Platform 8 Cochlear Implant System (Holden et al, 2004).
Performance was similar across original and new lists for six implanted Australian subjects; for four implanted U.
S.
subjects, mean performance was 23 percentage points lower with the new than with the original lists.
To evaluate differences between original and new lists for the American English recording, 22 CI recipients were administered all 40 CNC lists (30 new and 10 original lists).
The overall mean word score for the new lists was significantly lower (22.
3 percentage points) than for the original lists.
Acoustic analysis revealed that decreased performance was most likely due to reduced amplitudes of certain initial and final consonants.
The new CNC lists can be used as more difficult test material for clinical research.
Se crearon treinta "nuevas" listas de palabras monosilábicas en la Universidad de Melbourne, grabadas por hablantes de inglés australiano y americano.
Se usaron estas nuevas listas y las diez listas CNC originales (Peterson y Lehiste, 1962) durante el estudio de factibilidad para el Sistema de Implante Coclear Nucleus Research Platform 8 (Holden y col.
, 2004).
Los desempeños fueron similares con las listas originales y las nuevas para seis sujetos australianos implantados; para cuatro sujetos americanos implantados, el desempeño promedio fue 23 puntos porcentuales más bajo con las listas nuevas que con las originales.
Para evaluar las diferencias entre las listas nuevas y las originales para la grabación en inglés americano, se le aplicaron todas las 40 listas CNC a 22 portadores de CI (30 listas nuevas y 10 originales).
El puntaje global medio para las nuevas listas fue significativamente más bajo (22.
3 puntos porcentuales) que para las listas originales: El análisis acústico reveló que el desempeño más pobre era posiblemente debido a amplitudes reducidas de ciertas consonantes iniciales y finales.
Las nuevas listas CNC pueden ser utilizadas como un material de prueba más difícil para investigación clínica.

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