Dissociating the white matter tracts connecting the temporo-parietal cortical region with frontal cortex using diffusion tractography.

ABSTRACT: Three major white matter pathways connect the posterior temporal region and the adjacent inferior parietal lobule with the lateral frontal cortex: the arcuate fasciculus (AF), and the second and third branches of the superior longitudinal fasciculus (SLF II and SLF III). These pathways are found also in nonhuman primate brains where they play specific roles in auditory and spatial processing. The precise origin, course, and termination of these pathways has been examined in invasive tract tracing studies in macaque monkeys. Here we use this prior knowledge to improve dissections of these pathways in vivo in the human brain using diffusion Magnetic Resonance Imaging (MRI) tractography. In this study, the AF, originating from the posterior temporal cortex, has been successfully separated fro

SUBMITTER: Barbeau EB 

PROVIDER: S-EPMC7235086 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature