Phonological decoding ability is associated with fiber density of the left arcuate fasciculus longitudinally across reading development.

ABSTRACT: Numerous studies have linked reading ability to white matter microstructure using diffusion tensor imaging, but findings have been inconsistent and lack specificity. Fiber-specific diffusion-weighted magnetic resonance imaging (dMRI) models offer enhanced precision in measuring specific microstructural features, but they have not yet been applied to examine associations between reading ability and white matter microstructure development as children learn to read. We applied constrained spherical deconvolution (CSD) and fiber-specific modelling to characterize developmental changes in fiber density of key white matter tracts of the reading network, and investigated associations between tract-wise fiber density and children's phonological decoding abilities. Fiber density was measured from a

SUBMITTER: Perdue MV 

PROVIDER: S-EPMC11910681 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature