Development

Sarah-Jayne Blakemore: The mysterious workings of the adolescent brain

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The Teenage Brain

development of human brainThis image demonstrates the stages of brain development between ages 5 and 20. Red shows more gray matter, blue shows less. Note that areas that perform more basic functions mature earlier. The prefrontal cortex that performs reasoning on other "executive" functions are last to mature.

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Watch this animation of fetal brain development from the brain museum.