Development of the visual white matter pathways mediates development of electrophysiological responses in visual cortex.

ABSTRACT: The latency of neural responses in the visual cortex changes systematically across the lifespan. Here, we test the hypothesis that development of visual white matter pathways mediates maturational changes in the latency of visual signals. Thirty-eight children participated in a cross-sectional study including diffusion magnetic resonance imaging (MRI) and magnetoencephalography (MEG) sessions. During the MEG acquisition, participants performed a lexical decision and a fixation task on words presented at varying levels of contrast and noise. For all stimuli and tasks, early evoked fields were observed around 100 ms after stimulus onset (M100), with slower and lower amplitude responses for low as compared to high contrast stimuli. The optic radiations and optic tracts were identified in each

SUBMITTER: Caffarra S 

PROVIDER: S-EPMC8559498 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature