the impact of anxiety-inducing distraction on cognitive performance a combined brain imaging and personality investigation使人分心的影响在认知能力结合脑成像和人格调查.pdf

The Impact of Anxiety-Inducing Distraction on Cognitive Performance: A Combined Brain Imaging and Personality Investigation 1 2 3 1 4 1 Ekaterina Denkova , Gloria Wong , Sanda Dolcos , Keen Sung , Lihong Wang , Nicholas Coupland , Florin Dolcos3,5* 1 Department of Psychiatry, University of Alberta, Edmonton, Canada, 2 Centre for Neuroscience, University of Alberta, Edmonton, Canada, 3 Department of Psychology, University of Illinois, Urbana-Champaign, Illinois, United States of America, 4 Brain Imaging and Analysis Center, Duke University, Durham, North Carolina, United States of America, 5 Beckman Institute, University of Illinois, Urbana-Champaign, Illinois, United States of America Abstract Background: Previous investigations revealed that the impact of task-irrelevant emotional distraction on ongoing goal- oriented cognitive processing is linked to opposite patterns of activation in emotional and perceptual vs. cognitive control/ executive brain regions. However, little is known about the role of individual variations in these responses. The present study investigated the effect of trait anxiety on the neural responses mediating the impact of transient anxiety-inducing task-irrelevant distraction on cognitive performance, and on the neural correlates of coping with such distraction. We investigated whether activity in the brain regions sensitive to emotional distraction would show dissociable patterns of co- variation with measures indexing individual variations in trait anxiety and cognitive performance. Methodology/Principal Findings: Event-related fMRI data, recorded while healthy female participants performed a delayed- response working memory (WM) task with distraction, were investigated in c