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Updated: Jun 10, 2026

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Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
Published on: March 24, 2023
Single word and sentence intelligibility in children with cochlear implants
Fadwa A Khwaileh1, Peter Flipsen
1Department of Audiology and Speech Language Pathology, University of Tennessee-Health Science Center, Knoxville, TN 37996-0740, USA. fkhwaile@utk.edu
Clinical Linguistics & Phonetics
|July 22, 2010
Summary
Assessing speech intelligibility in children with cochlear implants requires both single-word and sentence-level tests. Greater implant experience correlates with better speech clarity, highlighting the importance of auditory input for speech development.
Area of Science:
- Audiology
- Speech-Language Pathology
- Pediatric Otolaryngology
Background:
- Cochlear implants (CIs) offer auditory input to children with severe to profound hearing loss.
- Assessing speech intelligibility is crucial for evaluating CI outcomes in pediatric populations.
- Standardized measures are needed to accurately gauge speech clarity in children with CIs.
Purpose of the Study:
- To compare the intelligibility of speech produced by children with CIs using different assessment measures.
- To investigate the relationship between speech intelligibility and factors like age, implantation age, and implant experience.
- To determine the optimal method for assessing speech intelligibility in this population.
Main Methods:
- Seventeen children (aged 4-11 years) with CIs participated.
- Speech intelligibility was assessed using the Beginners' Intelligibility Test (BIT) for sentences and the Children Speech Intelligibility Measure (CSIM) for words (open and closed-set formats).
- Naïve listeners transcribed or identified spoken stimuli; scores were averaged and compared across measures and correlated with participant characteristics.
Main Results:
- Strong positive correlations were found among all three intelligibility measures (BIT, CSIM-T, CSIM-MC).
- Significant differences in scores were observed across the three tasks.
- Speech intelligibility showed a significant positive correlation with the amount of cochlear implant experience, but not with chronological age or age at implantation.
Conclusions:
- Combining single-word and sentence-level intelligibility measures provides a more comprehensive assessment for children with CIs.
- The amount of experience with a cochlear implant is a significant factor influencing speech intelligibility.
- Sufficient auditory input is essential for the development of clear and understandable speech in children using cochlear implants.
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Hearing
When we hear a sound, our nervous system is detecting sound waves—pressure waves of mechanical energy traveling through a medium. The frequency of the wave is perceived as pitch, while the amplitude is perceived as loudness.
The Cochlea
The cochlea is a coiled structure in the inner ear that contains hair cells—the sensory receptors of the auditory system. Sound waves are transmitted to the cochlea by small bones attached to the eardrum called the ossicles, which vibrate the oval window that leads to the inner ear. This causes fluid in the chambers of the cochlea to move, vibrating the basilar membrane.
Language Development
Children master language quickly and with relative ease, supported by both biological predisposition and reinforcement. B. F. Skinner (1957) proposed that language is learned through reinforcement, while Noam Chomsky (1965) argued that language acquisition mechanisms are biologically determined.
The critical period for language acquisition suggests that the ability to acquire language is at its peak early in life. As people age, this proficiency decreases. Language development begins very...
The critical period for language acquisition suggests that the ability to acquire language is at its peak early in life. As people age, this proficiency decreases. Language development begins very...
