A distinct intra-individual suppression subnetwork in the brain's default mode network across cognitive tasks.

ABSTRACT: Suppression of the brain's default mode network (DMN) during external goal-directed cognitive tasks has been consistently observed in neuroimaging studies. However, emerging insights suggest the DMN is not a monolithic "task-negative" network but is comprised of subsystems that show functional heterogeneity. Despite considerable research interest, no study has investigated the consistency of DMN activity suppression across multiple cognitive tasks within the same individuals. In this study, 85 healthy 15- to 25-year-olds completed three functional magnetic resonance imaging tasks that were designed to reliably map DMN suppression from a resting baseline. Our findings revealed a distinct suppression subnetwork across the three tasks that comprised traditional DMN and adjacent regions. Speci

SUBMITTER: Leonards CA 

PROVIDER: S-EPMC10110429 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature