Contributions of default mode network stability and deactivation to adolescent task engagement.

ABSTRACT: Out of the several intrinsic brain networks discovered through resting-state functional analyses in the past decade, the default mode network (DMN) has been the subject of intense interest and study. In particular, the DMN shows marked suppression during task engagement, and has led to hypothesized roles in internally-directed cognition that need to be down-regulated in order to perform goal-directed behaviors. Previous work has largely focused on univariate deactivation as the mechanism of DMN suppression. However, given the transient nature of DMN down-regulation during task, an important question arises: Does the DMN need to be strongly, or more stably suppressed to promote successful task learning? In order to explore this question, 65 adolescents (M_age = 13.32; 21 females)

SUBMITTER: McCormick EM 

PROVIDER: S-EPMC6303343 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature