Highly accurate retinotopic maps of the physiological blind spot in human visual cortex.

ABSTRACT: The physiological blind spot is a naturally occurring scotoma corresponding with the optic disc in the retina of each eye. Even during monocular viewing, observers are usually oblivious to the scotoma, in part because the visual system extrapolates information from the surrounding area. Unfortunately, studying this visual field region with neuroimaging has proven difficult, as it occupies only a small part of retinotopic cortex. Here, we used functional magnetic resonance imaging and a novel data-driven method for mapping the retinotopic organization in and around the blind spot representation in V1. Our approach allowed for highly accurate reconstructions of the extent of an observer's blind spot, and out-performed conventional model-based analyses. This method opens exciting opportunitie

SUBMITTER: Urale PWB 

PROVIDER: S-EPMC9812231 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature