Neural dissociation of visual attention span and phonological deficits in developmental dyslexia: A hub-based white matter network analysis.

ABSTRACT: It has been suggested that developmental dyslexia may have two dissociable causes-a phonological deficit and a visual attention span (VAS) deficit. Yet, neural evidence for such a dissociation is still lacking. This study adopted a data-driven approach to white matter network analysis to explore hubs and hub-related networks corresponding to VAS and phonological accuracy in a group of French dyslexic children aged from 9 to 14 years. A double dissociation in brain-behavior relations was observed. Structural connectivity of the occipital-parietal network surrounding the left superior occipital gyrus hub accounted for individual differences in dyslexic children's VAS, but not in phonological processing accuracy. In contrast, structural connectivity of two networks: the temporal-parietal-occi

SUBMITTER: Liu T 

PROVIDER: S-EPMC9812243 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature