Inhibitory tagging both speeds and strengthens saccade target selection in the superior colliculus during visual search.

ABSTRACT: It has been suggested that, during difficult visual search tasks involving time pressure and multiple saccades, inhibitory tagging helps to facilitate efficient saccade target selection by reducing responses to objects in the scene once they have been searched and rejected. The superior colliculus (SC) is a midbrain structure involved in target selection, and recent findings suggest an influence of inhibitory tagging on SC activity. Precisely how, and by how much, inhibitory tagging influences target selection by SC neurons, however, is unclear. The purpose of this study, therefore, was to characterize and quantify the influence of inhibitory tagging on target selection in the SC. Rhesus monkeys performed a visual search task involving time pressure and multiple saccades. Early in the fixa

SUBMITTER: Conroy C 

PROVIDER: S-EPMC10541111 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature