Home Auditory Environments of Children With Cochlear Implants and Children With Normal Hearing

Area of Science:

• Pediatric audiology
• Developmental linguistics
• Speech-language pathology

Background:

• The home auditory environment significantly influences children's spoken language acquisition and overall development.
• Understanding these environments is crucial for children with hearing impairments, particularly those using cochlear implants (CIs).

Purpose of the Study:

• To compare the home auditory environments of children with CIs to those of children with normal hearing (NH).
• To identify potential differences and similarities in auditory experiences that may impact language development.

Main Methods:

• Utilized the Language Environment Analysis System to record and analyze measures like adult word count (AWC), conversational turns (CTs), child vocalizations (CVs), television/media (TVN), overlapping sound (OLN), and noise (NON).
• Collected daylong recordings quarterly over one year from 16 children with CIs and 25 children with NH.
• Gathered data on maternal education, residual hearing, and age at CI activation.

Main Results:

• Conversational turns (CTs) and child vocalizations (CVs) increased with age in the NH group but not in the CI group.
• The normal hearing (NH) group experienced significantly higher levels of background noise (NON).
• No significant group differences were observed for adult word count (AWC), television/media (TVN), or overlapping sound (OLN).
• For children with CIs, CTs, CVs, TVN, and NON were associated with maternal education, age at CI activation, and residual hearing.

Conclusions:

• Home auditory environments share similarities but also exhibit key differences between children with CIs and NH peers.
• Findings underscore the need for tailored early intervention strategies to optimize spoken language development for children with CIs.
• The study highlights the impact of environmental factors and individual characteristics on the auditory experiences of children with CIs.