Distinct phase-amplitude couplings distinguish cognitive processes in human attention.

ABSTRACT: Spatial attention is the cognitive function that coordinates the selection of visual stimuli with appropriate behavioral responses. Recent studies have reported that phase-amplitude coupling (PAC) of low and high frequencies covaries with spatial attention, but differ on the direction of covariation and the frequency ranges involved. We hypothesized that distinct phase-amplitude frequency pairs have differentiable contributions during tasks that manipulate spatial attention. We investigated this hypothesis with electrocorticography (ECoG) recordings from participants who engaged in a cued spatial attention task. To understand the contribution of PAC to spatial attention we classified cortical sites by their relationship to spatial variables or behavioral performance. Local neural activity

SUBMITTER: Chacko RV 

PROVIDER: S-EPMC6369928 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature