期刊
BRAIN AND COGNITION
卷 134, 期 -, 页码 80-89出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.bandc.2018.12.004
关键词
Early literacy; Diffusion-weighted imaging; Inferior longitudinal fasciculus; Arcuate fasciculus; Inferior fronto-occipital fasciculus; Vertical occipital fasciculus
资金
- National Institute on Drug Abuse [1U01DA041156-01]
- National Institute of Mental Health [1R56MH108616]
The development of fluent reading is an extended process that requires the recruitment of a comprehensive system of perisylvian brain regions connected by an extensive network of fiber pathways. In the present crosssectional study, we focused on fiber pathways-the arcuate fasciculus (AF), inferior longitudinal fasciculus (ILF), inferior fronto-occipital fasciculus (IFOF), and vertical occipital fasciculus (VOF)-proposed to support early literacy in typical 5-8-year-old children. We related quantitative metrics of fiber pathway microstructure in these pathways to early literacy measures of phonological awareness and decoding. We found that diffusion properties of the AF, ILF, and VOF not only show age-related differences, but also are predictive of early literacy skills after controlling for the effects of age, general white matter development, sex, IQ, and phonological skill. Perhaps most novel, we provide evidence supporting the involvement of the recently re-identified VOF in early literacy, and further, we provide evidence that a bilateral network of fiber pathways supports early literacy development.
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