Exploring the relationship between auditory late latency response and language age in children using cochlear implant

Area of Science:

• Audiology
• Neuroscience
• Developmental Pediatrics

Background:

• Children with unilateral cochlear implants (CI) and contralateral hearing aids (HA) present unique auditory processing profiles.
• Assessing auditory maturation and its relationship with language development is crucial for this population.

Purpose of the Study:

• To compare P1 latency and P1-N1 amplitude from auditory late latency responses (ALLR) with receptive and expressive language ages in children using a CI and HA.
• To investigate the correlation between auditory maturation markers and language development in pediatric CI users.

Main Methods:

• 30 children (48-96 months) with unilateral CI and contralateral HA participated.
• Auditory late latency responses (ALLR) measured P1 latency and P1-N1 amplitude.
• Receptive and expressive language ages were assessed using the Assessment Checklist for Speech-Language Skills (ACSLS).

Main Results:

• No significant association was found between ALLR measures (P1 latency, P1-N1 amplitude) and receptive or expressive language ages.
• A significant negative correlation was observed between P1 latency and implant age (Spearman's rho = -0.371, p = 0.043).

Conclusions:

• P1 latency, an indicator of auditory maturation, may not reliably predict language outcomes in children with CI and HA.
• Language development in these children is likely influenced by factors beyond auditory maturation alone.