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Updated: Oct 3, 2025
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Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
Published on: March 24, 2023
488
Semantic word integration in children with cochlear implants: Electrophysiological evidence
Elizabeth Pierotti1,2, Sharon Coffey-Corina1, Tristan Schaefer1,3
1Center for Mind and Brain, University of California, Davis, CA.
Language, Cognition and Neuroscience
|February 21, 2022
Summary
Children with cochlear implants (CIs) show distinct brain responses during semantic processing compared to hearing peers. These differences in event-related potentials (ERPs) suggest variations in attention and strategy impact how children integrate word and picture information.
Area of Science:
- Neuroscience
- Developmental Psychology
- Audiology
Background:
- Children with hearing loss using cochlear implants (CIs) may have altered integration of lexical and conceptual information due to differential auditory experiences.
- Understanding semantic processing in CI users is crucial for addressing potential developmental disparities.
Purpose of the Study:
- To investigate event-related potential (ERP) differences in semantic processing between children with CIs and typically hearing children.
- To explore how auditory experience impacts the integration of word and picture information.
Main Methods:
- A word-picture priming task was administered to measure ERPs in CI-using children (n=29) and typically hearing children (n=19).
- Participants viewed audiovisual word primes and picture targets, assessing semantic congruence and incongruence.
- Event-related potentials, specifically the N400 and P2 components, were analyzed.
Main Results:
- Both groups exhibited an N400 semantic effect, with semantic relatedness modulating ERP amplitude (300-500ms post-picture onset).
- CI-using children showed significantly more negative N400 responses to unrelated word-picture pairs compared to hearing children.
- Group differences were also observed in an earlier P2 response window (150-275ms).
Conclusions:
- Semantic processing differs between children with CIs and typically hearing children, as evidenced by ERP component modulations.
- Attentional and/or strategic differences likely underlie the observed N400 and P2 variations.
- These findings highlight the impact of auditory experience on cognitive processes involved in language comprehension.
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