Tone perception in Mandarin-speaking children with cochlear implants.
Int J Audiol
; 56(sup2): S49-S59, 2017.
Article
en En
| MEDLINE
| ID: mdl-28532185
ABSTRACT
OBJECTIVE:
To evaluate the effects of implant age and duration of implantation on development of Mandarin tone perception in paediatric cochlear implant recipients.DESIGN:
Retrospective cross-sectional evaluation of tone perception, as assessed with the Mandarin Early Speech Perception test at 3, 6, 12, 24, 36 and 48 months after activation. STUDY SAMPLE A total of 143 subjects, 60 girls and 83 boys unilaterally implanted at 1-4 years of age comprised the sample. All the subjects were implanted with devices from one of three manufacturers.RESULTS:
Regardless of implant age, approximately 80% of the subjects obtained overall tone discrimination scores significantly above chance by 4 years after implantation, and average discrimination accuracy increased from approximately 68% to 79%. Acoustically distinct tones 1 and 4 were discriminated and recognised more accurately, while less distinct tones 2 and 3 were discriminated and recognised less accurately. Large individual differences in performance were evident.CONCLUSIONS:
Most Mandarin-speaking paediatric CI recipients discriminate tones above chance at 5 years of age with accuracy comparable to that of children with normal hearing at 2 years of age. Modest benefits of early implantation are evident.Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Percepción de la Altura Tonal
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Percepción del Habla
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Fonética
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Implantes Cocleares
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Personas con Deficiencia Auditiva
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Implantación Coclear
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Pérdida Auditiva
Tipo de estudio:
Diagnostic_studies
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Observational_studies
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Prevalence_studies
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Risk_factors_studies
Límite:
Child, preschool
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Female
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Humans
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Infant
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Male
País como asunto:
Asia
Idioma:
En
Año:
2017
Tipo del documento:
Article