Morpho-syntactic reading comprehension in children with early and late cochlear implants

Area of Science:

• Linguistics
• Audiology
• Developmental Psychology

Background:

• Cochlear implants (CI) offer auditory input to deaf children.
• The timing of CI intervention is crucial for developmental outcomes.
• Morpho-syntactic comprehension is a key component of reading proficiency.

Purpose of the Study:

• To investigate the impact of early versus late cochlear implantation on morpho-syntactic reading comprehension.
• To compare the performance of children with early CI, late CI, and hearing controls.
• To identify factors influencing morpho-syntactic comprehension in CI users.

Main Methods:

• A cohort of 19 Spanish children with early CI (before 24 months) and 19 with late CI (after 24 months) were assessed.
• A control group of 19 hearing children was included for comparison.
• Standardized tests evaluated perceptual reasoning, working memory, vocabulary, and morpho-syntactic comprehension.

Main Results:

• Children with late CI demonstrated developmental delays in morpho-syntactic comprehension.
• Children with early CI achieved comprehension levels comparable to their hearing peers.
• Verbal inflectional morphology was the most significant differentiator between groups.

Conclusions:

• Early cochlear implantation positively impacts morpho-syntactic reading comprehension.
• Inflectional morphology and simple sentence comprehension are enhanced by early CI.
• The timing of CI intervention is critical for optimal language and reading development.