The relation between home language environment and structural neural connectivity in infants with and without an elevated risk for oral language disorders

Bonnet, Camille;Szmalec, Arnaud;Van Reybroeck, Marie;Vanderauwera, Jolijn
(2022) Flux Congress The International Congress for Integrative Developmental Cognitive Neuroscience — Location: Paris, France (7.September.2022)

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For most children, language acquisition is an early, effortless process considered to result from the interaction between neuroanatomical foundations and the language environment. Past research has emphasized the importance of the quality and quantity of early language exposure for the development of language skills. However, only a limited number of studies have attempted to explore the neural mechanisms underlying the relation between home language exposure and children's language skills. Combining a natural sleep MRI protocol and the Language ENvironment Analysis (LENA) technology in 12-to-24-month-old children, the present study aims at investigating how variations in early language exposure relates to structural neural connectivity in children with or without an elevated risk for oral language disorders. Two-day long naturalistic audio recordings were acquired as a measure of a child's language environment and development. Estimated counts per hour for conversational turns, adult words, and child vocalizations together with qualitative measures of caregivers' responsiveness were extracted as relevant markers for quantitative and qualitative early language exposure. Preliminary results investigating the relation between these ecological measures of a child's early language development and environment and white matter connectivity measured through fractional anisotropy will be presented.
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Bonnet, C., Szmalec, A., Van Reybroeck, M., & Vanderauwera, J. (2022). The relation between home language environment and structural neural connectivity in infants with and without an elevated risk for oral language disorders. Flux Congress The International Congress for Integrative Developmental Cognitive Neuroscience, Paris, France. https://hdl.handle.net/2078.5/26975