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Influences of the early family environment and long-term vocabulary development on the structure of white matter pathways: A longitudinal investigation.

Published on Feb 4, 2020in Developmental Cognitive Neuroscience4.92
· DOI :10.1016/J.DCN.2020.100767
Mengmeng Su8
Estimated H-index: 8
(Capital Normal University),
Mengmeng Su (Capital Normal University)+ 7 AuthorsHua Shu42
Estimated H-index: 42
(McGovern Institute for Brain Research)
Abstract
Abstract In the present longitudinal study, we investigated the joint effect of early family factors and long-term vocabulary development on the structure of reading-related white matter pathways in adolescents. Seventy-nine children participated in this study. Family environment was measured via parental questionnaire between age 1 and age 3. From age 4 to age 10, children’s vocabulary skills were tested annually. At age 14, diffusion tensor imaging data of the children were collected. Using individual-based tractography, 10 reading-related tracts of the two hemispheres were delineated. Different family factors were found to be correlated with different pathways: Age of literacy exposure was correlated with fractional anisotropy of the direct segment of the left arcuate fasciculus, while an association trend was found between early family socioeconomic status and fractional anisotropy of the left inferior frontal occipital fasciculus. Further regression analyses showed that the age of literacy exposure modulated the relationships between vocabulary development and the structure of the left arcuate fasciculus. Specifically, in the earlier literacy exposure group, no association was found between vocabulary development and the strength of the arcuate fasciculus, whereas in the later literacy exposure group, significant associations were found between vocabulary development and the strength of the arcuate fasciculus.
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  • Citations (1)
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References65
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#1Ola Ozernov-Palchik (McGovern Institute for Brain Research)H-Index: 8
#2Elizabeth S. Norton (NU: Northwestern University)H-Index: 12
Last. Nadine Gaab (Boston Children's Hospital)H-Index: 33
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: Reading is a learned skill crucial for educational attainment. Children from families of lower socioeconomic status (SES) tend to have poorer reading performance and this gap widens across years of schooling. Reading relies on the orchestration of multiple neural systems integrated via specific white-matter pathways, but there is limited understanding about whether these pathways relate differentially to reading performance depending on SES background. Kindergarten white-matter FA and second-g...
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#1Rachel R. Romeo (Harvard University)H-Index: 6
#2Joshua Segaran (McGovern Institute for Brain Research)H-Index: 1
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Neuroscience research has elucidated broad relationships between socioeconomic status (SES) and young children9s brain structure, but there is little mechanistic knowledge about specific environmental factors that are associated with specific variation in brain structure. One environmental factor, early language exposure, predicts children9s linguistic and cognitive skills and later academic achievement, but how language exposure relates to neuroanatomy is unknown. By measuring the real-world la...
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#1Mengmeng Su ('ENS Paris': École Normale Supérieure)H-Index: 8
#2Michel Thiebaut de Schotten (French Institute of Health and Medical Research)H-Index: 38
Last. Hua Shu (McGovern Institute for Brain Research)H-Index: 42
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The acquisition of language involves the functional specialization of several cortical regions. Connectivity between these brain regions may also change with the development of language. Various studies have demonstrated that the arcuate fasciculus was essential for language function. Vocabulary learning is one of the most important skills in language acquisition. In the present longitudinal study, we explored the influence of vocabulary development on the anatomical properties of the arcuate fa...
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Children’s early language exposure impacts their later linguistic skills, cognitive abilities, and academic achievement, and large disparities in language exposure are associated with family socioeconomic status (SES). However, there is little evidence about the neural mechanisms underlying the relation between language experience and linguistic and cognitive development. Here, language experience was measured from home audio recordings of 36 SES-diverse 4- to 6-year-old children. During a story...
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Abstract Children vary greatly in their vocabulary development during preschool years. Importantly, the pace of this early vocabulary growth predicts vocabulary size at school entrance. Despite its importance for later academic success, not much is known about the relation between individual differences in early vocabulary development and later brain structure and function. Here we examined the association between vocabulary growth in children, as estimated from longitudinal measurements from 14...
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