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Updated: Mar 2, 2026
06:04
Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
Published on: March 24, 2023
901
Mandarin compound vowels produced by prelingually deafened children with cochlear implants.
1Communication Sciences and Disorders, University of Central Arkansas, Conway, AK 72035, USA.
Summary
Children with cochlear implants (CIs) show differences in producing compound vowels, with longer durations and slower formant changes compared to normal-hearing peers. This suggests challenges in early speech acquisition for CI users.
Area of Science:
- Speech-language pathology
- Audiology
- Linguistics
Background:
- Compound vowels possess complex spectral dynamics.
- Previous research has not explored compound vowel production in children with cochlear implants (CIs).
Purpose of the Study:
- To investigate the dynamic spectral features of compound vowels produced by native Mandarin-speaking children with CIs.
- To compare their production with age-matched, normal-hearing children.
Main Methods:
- Analyzed formant frequencies (F1, F2) at nine time points for six Mandarin compound vowels.
- Measured vowel duration, formant trajectory length, and spectral rate of change.
- Included 14 prelingually deafened children with CIs and 14 normal-hearing children.
Main Results:
- Children with CIs exhibited significantly longer durations for all compound vowels.
- Formant movement varied among CI users; some showed less movement than normal-hearing peers, while others showed more.
- As a group, CI users demonstrated a slower rate of formant change.
Conclusions:
- Prelingually deafened children with CIs may struggle with target setting and articulatory coordination for compound vowels early in speech acquisition.
- Findings offer insights for speech rehabilitation strategies for children with CIs.
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