Decoupling of reaction time-related default mode network activity with cognitive demand.
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ABSTRACT:
SUBMITTER: Barber AD
PROVIDER: S-EPMC5967252 | biostudies-literature | 2017 Jun
REPOSITORIES: biostudies-literature
Publications
Decoupling of reaction time-related default mode network activity with cognitive demand.
Barber Anita D AD Caffo Brian S BS Pekar James J JJ Mostofsky Stewart H SH
Brain imaging and behavior 20170601 3
Reaction Time (RT) is associated with increased amplitude of the Blood Oxygen-Level Dependent (BOLD) response in task positive regions. Few studies have focused on whether opposing RT-related suppression of task activity also occurs. The current study used two Go/No-go tasks with different cognitive demands to examine regions that showed greater BOLD suppression for longer RT trials. These RT-related suppression effects occurred within the DMN and were task-specific, localizing to separate regio ...[more]
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