Interactions between default mode and control networks as a function of increasing cognitive reasoning complexity.

ABSTRACT: Successful performance of challenging cognitive tasks depends on a consistent functional segregation of activity within the default-mode network, on the one hand, and control networks encompassing frontoparietal and cingulo-opercular areas on the other. Recent work, however, has suggested that in some cognitive control contexts nodes within the default-mode and control networks may actually cooperate to achieve optimal task performance. Here, we used functional magnetic resonance imaging to examine whether the ability to relate variables while solving a cognitive reasoning problem involves transient increases in connectivity between default-mode and control regions. Participants performed a modified version of the classic Wason selection task, in which the number of variables to be related

SUBMITTER: Hearne L 

PROVIDER: S-EPMC6869606 | biostudies-literature | 2015 Jul

REPOSITORIES: biostudies-literature