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Updated: May 29, 2025
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Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
Published on: March 24, 2023
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Meta-analysis on lexical tone recognition in cochlear implant users.
Yufeng Chen1, Yu Yang2, Xueying Zhang3
1School of Literature, Shandong University, Jinan, China.
International Journal of Audiology
|February 1, 2025
Summary
Cochlear implant (CI) users struggle with lexical tone recognition compared to normal hearing individuals. Bimodal stimulation and earlier, longer CI use can improve tone perception.
Area of Science:
- Audiology
- Speech-Language Pathology
- Neuroscience
Background:
- Lexical tone is crucial for communication in tonal languages.
- Impaired lexical tone recognition is a common challenge for cochlear implant (CI) users.
Purpose of the Study:
- To investigate lexical tone recognition abilities in CI users.
- To identify factors influencing tone recognition in this population.
Main Methods:
- Systematic literature search across eleven databases.
- Meta-analysis of forty studies using a multi-item alternative forced-choice paradigm.
- Evaluation of risk of bias in included studies.
Main Results:
- CI users demonstrated poorer lexical tone recognition than normal hearing (NH) controls.
- Bimodal stimulation positively impacted tone recognition in both quiet and noisy environments.
- Negative correlation found between tone recognition and age at implantation; positive correlation with CI experience duration.
Conclusions:
- CI users do not achieve NH-level lexical tone recognition.
- Bimodal intervention offers greater benefits than unimodal implantation.
- Earlier implantation and extended CI use enhance lexical tone recognition.
