Specialization in the default mode: Task-induced brain deactivations dissociate between visual working memory and attention.

ABSTRACT: The idea of an organized mode of brain function that is present as default state and suspended during goal-directed behaviors has recently gained much interest in the study of human brain function. The default mode hypothesis is based on the repeated observation that certain brain areas show task-induced deactivations across a wide range of cognitive tasks. In this event-related functional resonance imaging study we tested the default mode hypothesis by comparing common and selective patterns of BOLD deactivation in response to the demands on visual attention and working memory (WM) that were independently modulated within one task. The results revealed task-induced deactivations within regions of the default mode network (DMN) with a segregation of areas that were additively deactivated b

SUBMITTER: Mayer JS 

PROVIDER: S-EPMC6870780 | biostudies-literature | 2010 Jan

REPOSITORIES: biostudies-literature