Functional modular architecture underlying attentional control in aging.

ABSTRACT: Previous research suggests that age-related differences in attention reflect the interaction of top-down and bottom-up processes, but the cognitive and neural mechanisms underlying this interaction remain an active area of research. Here, within a sample of community-dwelling adults 19-78 years of age, we used diffusion reaction time (RT) modeling and multivariate functional connectivity to investigate the behavioral components and whole-brain functional networks, respectively, underlying bottom-up and top-down attentional processes during conjunction visual search. During functional MRI scanning, participants completed a conjunction visual search task in which each display contained one item that was larger than the other items (i.e., a size singleton) but was not informative regarding ta

SUBMITTER: Monge ZA 

PROVIDER: S-EPMC5512538 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature