Microstructural properties of the vertical occipital fasciculus explain the variability in human stereoacuity.

ABSTRACT: Stereopsis is a fundamental visual function that has been studied extensively. However, it is not clear why depth discrimination (stereoacuity) varies more significantly among people than other modalities. Previous studies have reported the involvement of both dorsal and ventral visual areas in stereopsis, implying that not only neural computations in cortical areas but also the anatomical properties of white matter tracts connecting those areas can impact stereopsis. Here, we studied how human stereoacuity relates to white matter properties by combining psychophysics, diffusion MRI (dMRI), and quantitative MRI (qMRI). We performed a psychophysical experiment to measure stereoacuity and, in the same participants, we analyzed the microstructural properties of visual white matter tracts on t

SUBMITTER: Oishi H 

PROVIDER: S-EPMC6275509 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature