Vocal Turn-Taking Between Mothers and Their Children With Cochlear Implants

Area of Science:

• Speech-language pathology
• Developmental psychology
• Audiology

Background:

• Vocal turn-taking is crucial for early communication development.
• Cochlear implants (CI) aim to restore hearing but may impact communication dynamics.
• Understanding mother-child interaction patterns post-CI is vital for intervention.

Purpose of the Study:

• To compare vocal turn-taking and its temporal structure in children with CI and normal hearing (NH) children.
• To examine changes in these interaction patterns during the first year after CI.
• To investigate the influence of CI on dyadic communication timing.

Main Methods:

• Longitudinal study comparing 12 children with CI and 12 NH children.
• Recorded spontaneous mother-child play sessions at 3 and 9 months post-CI.
• Coded vocalizations, speech overlap, and pauses to analyze turn-taking dynamics.

Main Results:

• Children with CI showed less turn-taking initially but improved over time.
• CI dyads exhibited more simultaneous speech and longer pauses early on.
• CI infants, unlike NH infants, had longer between-speaker pauses than within-speaker pauses.

Conclusions:

• Child hearing status and CI intervention significantly affect vocal turn-taking and timing.
• Mother-infant communication coordination is sensitive to hearing experience.
• CI positively influences dyadic interaction patterns over the first year.