Age-Related Inter-Region EEG Coupling Changes During the Control of Bottom-Up and Top-Down Attention.

ABSTRACT: We investigated age-related changes in electroencephalographic (EEG) coupling of theta-, alpha-, and beta-frequency bands during bottom-up and top-down attention. Arrays were presented with either automatic "pop-out" (bottom-up) or effortful "search" (top-down) behavior to younger and older participants. The phase-locking value was used to estimate coupling strength between scalp recordings. Behavioral performance decreased with age, with a greater age-related decline in accuracy for the search than for the pop-out condition. Aging was associated with a declined coupling strength of theta and alpha frequency bands, with a greater age-related decline in whole-brain coupling values for the search than for the pop-out condition. Specifically, prefronto-frontal coupling in theta- and alpha-ban

SUBMITTER: Li L 

PROVIDER: S-EPMC4664751 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature