Crash Course History of Science #30: The Mind/brain

Scientists in the nineteenth century discovered a lot about life and matter. But exactly what kind of stuff is the human brain? That one was - and is- tricky! This video explores the different theories on the brain and human behavior through history culminating in Freud's revolutionary use of psychoanalysis. We have come a long way in understanding the brain and have only scratched the surface. [12:46]