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Related Experiment Video

Updated: May 21, 2026

Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
06:04

Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages

Published on: March 24, 2023

Cochlear implanted children present vocal parameters within normal standards.

Lourdes Bernadete Rocha de Souza1, Maria Cecília Bevilacqua, Alcione Ghedini Brasolotto

  • 1Federal University of Rio Grande do Norte, Natal, Brazil. hls@digizap.com.br

International Journal of Pediatric Otorhinolaryngology
|June 2, 2012
PubMed
Summary

Cochlear implantation in children can lead to vocal characteristics similar to normal-hearing peers when supported by rehabilitation. This study compared acoustic and perceptual voice parameters in both groups.

Related Concept Videos

The Cochlea01:13

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.

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Area of Science:

  • Speech and Hearing Sciences
  • Pediatric Audiology
  • Linguistics

Background:

  • Cochlear implantation (CI) is a vital intervention for children with severe to profound hearing loss.
  • Assessing the long-term vocal development and acoustic characteristics of children with CI is crucial for their communication abilities.
  • Understanding voice parameters can inform therapeutic interventions and educational support for implanted children.

Purpose of the Study:

  • To compare acoustic and perceptual voice parameters between children with cochlear implants and children with normal hearing.
  • To evaluate the impact of cochlear implantation on voice quality and characteristics.
  • To identify similarities and differences in vocal production between the two groups.

Main Methods:

  • A cross-sectional study involving 36 children with cochlear implants and 25 children with normal hearing, aged 3 to 6 years.

Related Experiment Videos

Last Updated: May 21, 2026

Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
06:04

Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages

Published on: March 24, 2023

  • Acoustic analysis of sustained vowel /a/ and spontaneous speech using the PRAAT program, measuring fundamental frequency, jitter, shimmer, and harmonic-to-noise ratio (HNR).
  • Perceptual voice analysis using visual-analog scales assessing vocal deviation, roughness, breathiness, strain, pitch, loudness, resonance, and instability.

    • Main Results:

    • The majority of vocal parameters in children with cochlear implants were similar to those of children with normal hearing.
    • Acoustic analysis revealed comparable fundamental frequency, jitter, shimmer, and HNR between the groups.
    • Perceptual evaluation indicated no significant differences in overall vocal deviation, roughness, breathiness, or pitch between the implanted and normal-hearing children.

    Conclusions:

    • Cochlear-implanted children engaged in rehabilitation and follow-up programs can exhibit vocal characteristics comparable to their normal-hearing peers.
    • Early intervention and consistent audiological care contribute to normalized voice development in children with cochlear implants.
    • The findings support the efficacy of cochlear implantation and rehabilitation in fostering typical voice production.