Speech-perception performance in prelingually deafened French children using the nucleus multichannel cochlear...

Area of Science:

• Pediatric audiology
• Neuroscience of hearing

Background:

• Early-onset deafness significantly impacts speech development.
• Multichannel cochlear implantation is a key intervention for prelingual deafness.

Purpose of the Study:

• To longitudinally assess speech-perception development in French children with prelingual deafness post-cochlear implantation.
• To evaluate the impact of Nucleus multichannel cochlear implant on auditory skills.

Main Methods:

• Longitudinal study of 36 children with prelingual deafness (onset before age 2).
• Assessment of speech perception including phoneme detection, closed-set word/sentence recognition, and modified open-set recognition.
• Data collected at multiple time points post-implantation.

Main Results:

• All children achieved phoneme detection within 3 months.
• Initial differences in closed-set recognition between congenital and prelingual deafness resolved by 18 months.
• Modified open-set recognition emerged by 12 months and improved over 3 years.

Conclusions:

• Cochlear implantation leads to significant, progressive improvements in speech perception.
• High rates of success in closed-set and open-set recognition were observed with extended implant use.
• Multichannel cochlear implants are effective in restoring speech perception in children with early-onset deafness.