Impact of literacy on the functional connectivity of vision and language related networks.

NeuroImage
Diana López-BarrosoLaurent Cohen

Abstract

Learning to read leads to functional and structural changes in cortical brain areas related to vision and language. Previous evidence suggests that the Visual Word Form Area (VWFA), a region devoted to the recognition of letter strings in literate persons, acts as an interface between both systems. While different studies have performed univariate analyses to study the effects of literacy on brain function, little is known about its impact on whole functional networks, especially when literacy is acquired during adulthood. We investigated functional connectivity in three groups of adults with different literacy status: illiterates, ex-illiterates (i.e., who learned to read during adulthood), and literates (i.e., who learned to read in childhood). We used a data-driven, multivariate whole brain approach (Independent Component Analysis [ICA]) combined with a region of interest (ROI) analysis in order to explore the functional connectivity of the VWFA with four ICA networks related to vision and language functions. ICA allowed for the identification of four networks of interest: left fronto-parietal, auditory, medial visual and lateral visual functional networks, plus a control right fronto-parietal network. We explored the effect...Continue Reading

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Citations

Jul 2, 2020·Scientific Reports·María José Torres-PriorisAdolfo M García
Oct 1, 2020·Cerebral Cortex·Katarzyna Siuda-KrzywickaLaurent Cohen
Nov 17, 2020·Journal of the International Neuropsychological Society : JINS·George P PrigatanoLucia Willadino Braga
Oct 13, 2021·Brain Structure & Function·Sendy CaffarraJason D Yeatman

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