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Language development in deaf infants following cochlear implantation.
Richard T Miyamoto1, Derek M Houston, Karen Iler Kirk
1Department of Otolaryngology--Head and Neck Surgery, Indiana University School of Medicine, Indianapolis, Indiana 46202, USA. rmiyamot@iupui.edu
Acta Oto-Laryngologica
|April 19, 2003
Summary
Cochlear implantation in infancy significantly enhances language development. Infants implanted early achieve language milestones much sooner than older children, demonstrating the benefits of early intervention.
Area of Science:
- Pediatric audiology
- Developmental linguistics
- Otolaryngology
Background:
- Cochlear implantation is a vital intervention for infants with severe to profound hearing loss.
- Early intervention is crucial for optimal auditory and language development.
- Limited data exists on the long-term language outcomes of infants implanted before 12 months of age.
Purpose of the Study:
- To evaluate the language development benefits of cochlear implantation in infancy.
- To compare language outcomes in infants implanted early versus children implanted at older ages.
Main Methods:
- A single-subject case study design was employed.
- Standardized language assessments included the Grammatical Analysis of Elicited Language--Presentence Level (GAEL-P) and Reynell Developmental Language Scales.
- A novel Visual Habituation Procedure assessed early auditory discrimination skills.
Main Results:
- The infant implanted at 6 months achieved GAEL-P scores at age 2 years comparable to typically developing children at 5.5 years.
- Age-equivalent scores were attained on the Reynell Developmental Language Scales.
- The Visual Habituation Procedure confirmed speech pattern discrimination abilities.
Conclusions:
- Cochlear implantation in infancy, specifically at 6 months, leads to accelerated language development.
- Early implantation facilitates achieving age-appropriate language milestones significantly earlier.
- This case highlights the profound benefits of early intervention with cochlear implants for infants.