The brain is the most complex organ and system know to humans. It helps to create a computer model of one to find out how things work, and why things go wrong.
The 1992 class photo from Morse High School in San Diego, California.
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Evolutionary psychology could explain why the memories and friendships formed during these years seem more vivid, potent and meaningful than those from any other stage of life.
Different parts of our brains process different things, like the facial features, voices and the gait of people we know. But it takes memory to weave them all together into a single picture.
Traumatic events can stop the brain storing the context in which they took place.
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What exactly is addiction? What role, if any, does choice play? And if addiction involves choice, how can we call it a "brain disease," with its implications of involuntariness?
Research shows babies begin to learn language sounds before they're even born. What about babies who hear two languages from birth? Can a baby brain specialize in two languages?