The relationship between home language environment and fractional anisotropy in the arcuate fasciculi in infants with and without a risk for a language disorder

Bonnet, Camille;Van Reybroeck, Marie;Szmalec, Arnaud;Vanderauwera, Jolijn
(2022) Groupe de contact FNRS en Psycholinguistique et Neurolinguistique — Location: UMons (25.November.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 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 relationship 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 relate to structural neural connectivity measured using diffusion- weighted imaging in children with or without an elevated risk for 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 were extracted as relevant markers for a child’s early language exposure. Preliminary results investigating the relationship between these ecological measures of language development and environment and white matter connectivity measured through fractional anisotropy in bilateral arcuate fasciculi will be presented.
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Bonnet, C., Van Reybroeck, M., Szmalec, A., & Vanderauwera, J. (2022). The relationship between home language environment and fractional anisotropy in the arcuate fasciculi in infants with and without a risk for a language disorder. Groupe de contact FNRS en Psycholinguistique et Neurolinguistique, UMons. https://hdl.handle.net/2078.5/25249