Anticipatory and evoked visual cortical dynamics of voluntary temporal attention.

ABSTRACT: We can often anticipate the precise moment when a stimulus will be relevant for our behavioral goals. Voluntary temporal attention, the prioritization of sensory information at task-relevant time points, enhances visual perception. However, the neural mechanisms of voluntary temporal attention have not been isolated from those of temporal expectation, which reflects timing predictability rather than relevance. Here we use time-resolved steady-state visual evoked responses (SSVER) to investigate how temporal attention dynamically modulates visual activity when temporal expectation is controlled. We recorded magnetoencephalography while participants directed temporal attention to one of two sequential grating targets with predictable timing. Meanwhile, a co-localized SSVER probe continuously

SUBMITTER: Denison RN 

PROVIDER: S-EPMC11494016 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature