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Default mode network
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<p>In <a href="/facts/Neuroscience/o5RV8Cas">neuroscience</a>, the default mode network (DMN), also known as the default network, default state network, or anatomically the medial frontoparietal network (M-FPN), is a <a href="/facts/Large-scale_brain_network/5TNp5zh5">large-scale brain network</a> primarily composed of the dorsal <a href="/facts/Medial_prefrontal_cortex/dypYIrwx">medial prefrontal cortex</a>, <a href="/facts/Posterior_cingulate_cortex/JtSgb4Je">posterior cingulate cortex</a>, <a href="/facts/Precuneus/U1HaykRB">precuneus</a> and <a href="/facts/Angular_gyrus/bDPrsDez">angular gyrus</a>. It is best known for being active when a person is not focused on the outside world and the brain is at <a href="/facts/Wakefulness/eukTx8fQ">wakeful</a> rest, such as during <a href="/facts/Daydream/sWHGPfnU">daydreaming</a> and <a href="/facts/Mind-wandering/oF5MbApr">mind-wandering</a>. It can also be active during detailed thoughts related to external task performance. Other times that the DMN is active include when the individual is thinking about others, thinking about themselves, remembering the past, and planning for the future. The DMN creates a coherent "internal narrative" control to the construction of a sense of self. </p><p>The DMN was originally noticed to be deactivated in certain goal-oriented tasks and was sometimes referred to as the task-negative network, in contrast with the <a href="/facts/Dorsal_attention_network/9NtoSjS8">task-positive network</a>. This nomenclature is now widely considered misleading, because the network can be active in internal goal-oriented and conceptual cognitive 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 <a href="/facts/Alzheimer%2527s_disease/w7Ad6tdg">Alzheimer's disease</a> and <a href="/facts/Autism_spectrum_disorder/bzouRyMI">autism spectrum disorder</a>. <a href="/facts/Psilocybin/0jGynLUX">Psilocybin</a> produces the largest changes in areas of the DMN associated with <a href="/facts/Neuropsychiatry/YrbzeLoc">neuropsychiatric</a> disorders. </p>