The widespread belief that humans only use 10 percent of their brains is a well-known scientific myth; neuroimaging and clinical observations clearly show that virtually all brain regions are active throughout the day. No citation is needed for this basic neurological fact, and none of the provided papers discuss the myth.
The claim that humans only use 10 percent of their brains is a well-known neurological myth. Because it is contradicted by basic everyday scientific observation (e.g., neuroimaging showing metabolic activity across the entire brain), it falls under COMMON_KNOWLEDGE where no citation is needed. None of the retrieved papers discuss this myth, as they focus on unrelated topics like neurodegeneration, sleep, brain banking, and temporal cognition.