Retinotopic connectivity maps of human visual cortex with unconstrained eye movements.

ABSTRACT: Human visual cortex contains topographic visual field maps whose organization can be revealed with retinotopic mapping. Unfortunately, constraints posed by standard mapping hinder its use in patients, atypical subject groups, and individuals at either end of the lifespan. This severely limits the conclusions we can draw about visual processing in such individuals. Here, we present a novel data-driven method to estimate connective fields, resulting in fine-grained maps of the functional connectivity between brain areas. We find that inhibitory connectivity fields accompany, and often surround facilitatory fields. The visual field extent of these inhibitory subfields falls off with cortical magnification. We further show that our method is robust to large eye movements and myopic defocus. Im

SUBMITTER: Tangtartharakul G 

PROVIDER: S-EPMC10543111 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature