A Dynamic Interplay within the Frontoparietal Network Underlies Rhythmic Spatial Attention.

ABSTRACT: Classic studies of spatial attention assumed that its neural and behavioral effects were continuous over time. Recent behavioral studies have instead revealed that spatial attention leads to alternating periods of heightened or diminished perceptual sensitivity. Yet, the neural basis of these rhythmic fluctuations has remained largely unknown. We show that a dynamic interplay within the macaque frontoparietal network accounts for the rhythmic properties of spatial attention. Neural oscillations characterize functional interactions between the frontal eye fields (FEF) and the lateral intraparietal area (LIP), with theta phase (3-8 Hz) coordinating two rhythmically alternating states. The first is defined by FEF-dominated beta-band activity, associated with suppressed attentional shifts, and

SUBMITTER: Fiebelkorn IC 

PROVIDER: S-EPMC6474777 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature