Sound suppresses earliest visual cortical processing after sight recovery in congenitally blind humans.

ABSTRACT: Neuroscientific research has consistently shown more extensive non-visual activity in the visual cortex of congenitally blind humans compared to sighted controls; a phenomenon known as crossmodal plasticity. Whether or not crossmodal activation of the visual cortex retracts if sight can be restored is still unknown. The present study, involving a rare group of sight-recovery individuals who were born pattern vision blind, employed visual event-related potentials to investigate persisting crossmodal modulation of the initial visual cortical processing stages. Here we report that the earliest, stimulus-driven retinotopic visual cortical activity (<100 ms) was suppressed in a spatially specific manner in sight-recovery individuals when concomitant sounds accompanied visual stimulation. In con

SUBMITTER: Sourav S 

PROVIDER: S-EPMC10803735 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature