Mismatch negativity in children with developmental Dyslexia.

Int J Pediatr Otorhinolaryngol

Level IV, Department of Health and Human Communication, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil. Electronic address:

Published: January 2025

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Article Abstract

Objective: To describe and compare the latencies and amplitudes of Mismatch Negativity between children with and without Developmental Dyslexia.

Methods: Cross-sectional and comparative study, consisting of a study group of 52 children with Developmental Dyslexia and a control group of 52 children with typical development, matched by age and sex, aged between 9 years and 11 years and 11 months of both sexes. All participants underwent Otoscopy, Acoustic Immittance Measurements, Pure Tone Audiometry, Speech Audiometry, Brainstem Auditory Evoked Potential and Mismatch Negativity.

Results: It was verified a statistically significant difference when comparing Mismatch Negativity latencies between the groups, with higher values for children with Developmental Dyslexia (p = 0.012). However, there was no statistically significant difference in Mismatch Negativity amplitudes between the groups studied.

Conclusion: The results suggest that children with Developmental Dyslexia may present difficulties in auditory processing and discrimination skills compared to children with typical development.

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http://dx.doi.org/10.1016/j.ijporl.2025.112229DOI Listing

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