Top-down control of exogenous attentional selection is mediated by beta coherence in prefrontal cortex.

ABSTRACT: Salience-driven exogenous and goal-driven endogenous attentional selection are two distinct forms of attention that guide selection of task-irrelevant and task-relevant targets in primates. Top-down attentional control mechanisms enable selection of the task-relevant target by limiting the influence of sensory information. Although the lateral prefrontal cortex (LPFC) is known to mediate top-down control, the neuronal mechanisms of top-down control of attentional selection are poorly understood. Here, we trained two rhesus monkeys on a two-target, free-choice luminance-reward selection task. We demonstrate that visual-movement (VM) neurons and nonvisual neurons or movement neurons encode exogenous and endogenous selection. We then show that coherent beta activity selectively modulates mech

SUBMITTER: Dubey A 

PROVIDER: S-EPMC10935562 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature