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Our brain's Default Mode Network



In 2001, neurologist Marcus Raichle made a groundbreaking discovery - the default mode network (DMN) in the brain. He found that when our minds are free from external tasks and distractions, a network of brain regions becomes more active, dubbed the "default mode." This DMN lights up when we let our minds wander freely, recalling memories, considering others' perspectives, and constructing our coherent sense of self. Raichle's findings sparked intense research into how interconnected brain networks, rather than single regions, facilitate higher-order cognitive functions like forming our personal narrative. Over 20 years later, the DMN continues providing insights into the brain's intricate workings when unburdened by distractions, as well as potential links to neurological and psychiatric conditions. Raichle's revelation transformed our understanding of the resting, uninhibited brain.




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