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Updated: Oct 31, 2025

Infant Auditory Processing and Event-related Brain Oscillations
Published on: July 1, 2015
Parental Language Input Predicts Neuroscillatory Patterns Associated with Language Development in Toddlers at Risk of
Rachel R Romeo1,2, Boin Choi3, Laurel J Gabard-Durnam3,4
1Division of Developmental Medicine, Boston Children's Hospital, Harvard Medical School, 1 Autumn Street, Boston, MA, 02215, USA. rachel.romeo@childrens.harvard.edu.
Abstract:
In this study we investigated the impact of parental language input on language development and associated neuroscillatory patterns in toddlers at risk of Autism Spectrum Disorder (ASD). Forty-six mother-toddler dyads at either high (n = 22) or low (n = 24) familial risk of ASD completed a longitudinal, prospective study including free-play, resting electroencephalography, and standardized language assessments. Input quantity/quality at 18 months positively predicted expressive language at 24 months, and relationships were stronger for high-risk toddlers. Moderated mediations revealed that input-language relationships were explained by 24-month frontal and temporal gamma power (30-50 Hz) for high-risk toddlers who would later develop ASD. Results suggest that high-risk toddlers may be cognitively and neurally more sensitive to their language environments, which has implications for early intervention.
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