Age-related differences in frontoparietal activation for target and distractor singletons during visual search.

ABSTRACT: Age-related decline in visual search performance has been associated with different patterns of activation in frontoparietal regions using functional magnetic resonance imaging (fMRI), but whether these age-related effects represent specific influences of target and distractor processing is unclear. Therefore, we acquired event-related fMRI data from 68 healthy, community-dwelling adults ages 18-78 years, during both conjunction (T/F target among rotated Ts and Fs) and feature (T/F target among Os) search. Some displays contained a color singleton that could correspond to either the target or a distractor. A diffusion decision analysis indicated age-related increases in sensorimotor response time across all task conditions, but an age-related decrease in the rate of evidence accumulation (

SUBMITTER: Merenstein JL 

PROVIDER: S-EPMC10066832 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature