<Tr> <Td_colspan="2"> Anatomical terminology (edit on Wikidata) </Td> </Tr> <P> In neuroscience, the default mode network (DMN), also default network, or default state network, is a large scale brain network of interacting brain regions known to have activity highly correlated with each other and distinct from other networks in the brain . </P> <P> The default mode network is most commonly shown to be active when a person is not focused on the outside world and the brain is at wakeful rest, such as during daydreaming and mind - wandering . But it is also active when the individual is thinking about others, thinking about themselves, remembering the past, and planning for the future . The network activates "by default" when a person is not involved in a task . Though the DMN was originally noticed to be deactivated in certain goal - oriented tasks and is sometimes referred to as the task - negative network, it can be active in other goal - oriented tasks such as social working memory or autobiographical tasks . The DMN has been shown to be negatively correlated with other networks in the brain such as attention networks . </P> <P> Evidence has pointed to disruptions in the DMN of people with Alzheimer's and autism spectrum disorder . </P>

What is the role of the default mode network