Abstract
The Default mode network (DMN) was described in 2001 by Raichle consisting of a constellation of cortical brain areas that are active at rest, i.e. when the brain is not performing stimulus dependent tasks. It is involved in stimulus independent cognition, self-referential processing and mind wandering. It is made up of spatially widely distributed brain areas divided in a medial and lateral component: the medial subnetwork relates to 'self' processing, the lateral component to 'non-self' processing. The cortical building blocks include the ventromedial prefrontal cortex (inhibition), dorsomedial prefrontal cortex (intention), posterior cingulate cortex (environment), temporoparietal junction (multisensory integration), and anterior midtemporal area (unknown function). Some authors also include the hippocampal area. The DMN is part of the triple network model that proposes that abnormal interactions within and between 3 canonical brain networks underlie brain disorders. These 3 networks include the self-representational default mode network, the behavioural relevance encoding salience network and the goal oriented central executive network. The default mode network is involved in many mental disorders, either by hypo-, hyper-or dysconnectivity and abnormal activity, leading to disorganized cognition. This includes Alzheimer's disease, depression, schizophrenia, ADHD, autism, PTSD, OCD, TBI, and personality disorders.
Breakout Session - Artificial Intelligence