Involvement of the default mode network under varying levels of cognitive effort.

ABSTRACT: Everyday cognitive functioning is characterized by constant alternations between different modes of information processing, driven by constant fluctuations in environmental demands. At the neural level, this is realized through corresponding dynamic shifts in functional activation and network connectivity. A distinction is often made between resting and task processing and between task-negative and task-positive functional networks. The Default Mode Network (DMN) is classically considered as a resting state (i.e. task-negative) network, upregulated in the absence of cognitive demands. In contrast, task-positive networks have been labelled the Extrinsic Mode Network (EMN). We investigated changes in brain activation and functional network connectivity in an experimental situation of repeate

SUBMITTER: Weber S 

PROVIDER: S-EPMC9012747 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature