Tone production and perception and intelligibility of produced speech in Mandarin-speaking cochlear implanted children

Abstract

Objective: This study explored tone production, tone perception and intelligibility of produced speech in Mandarin-speaking prelingually deaf children with at least 5 years of cochlear implant (CI) experience. Another focus was on the predictive value of tone perception and tone production as they relate to speech intelligibility. Design: Cross-sectional research. Study sample: Thirty-three prelingually deafened children aged over eight years with over five years of experience with CI underwent tests for tone perception, tone production, and the Speech Intelligibility Rating (SIR). A Pearson correlation and a stepwise regression analysis were used to estimate the correlations among tone perception, tone production, and SIR scores. Results: The mean scores for tone perception, tone production, and SIR were 76.88%, 90.08%, and 4.08, respectively. Moderately positive Pearson correlations were found between tone perception and production, tone production and SIR, and tone perception and SIR (p < 0.01, p < 0.01 and p < 0.01, respectively). In the stepwise regression analysis, tone production, as the major predictor, accounted for 29% of the variations in the SIR (p < 0.01). Conclusions: Mandarin-speaking cochlear-implanted children with sufficient duration of CI use produce intelligent speech. Speech intelligibility can be predicted by tone production performance.

Key Words:

• Cochlear implant
• tone perception
• tone production
• speech intelligibility
• Mandarin Chinese

Acknowledgements

This study was supported by a grant from the Ministry of Science and Technology, Taiwan (NSC101-2221-E-006-019-MY3). The research was also supported by National Cheng Kung University Hospital, Tainan, Taiwan.

Declaration of interest

The authors have neither financial disclosures nor conflicts of interest relevant to this article.

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