Do Hormones Affect Brain Development?

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25% of people on death row in this country have a history of concussive head trauma to their frontal cortex. When the frontal cortex gets damaged, you don't have somebody who is violently out of control because they've got a rotten soul. The other one is just as much of a, are you kidding me? This is what the world is like at first pass.

A common argument against free will is that human behavior is not freely chosen, but rather determined by a number of factors. So what are those factors, anyway? There’s no one better equipped to answer this question than Robert Sapolsky, a leading psychoneurobiologist who has studied human behavior from a variety of angles. In this conversation we follow the path Sapolsky sets out in his bestselling book Behave, where he examines the influences on our behavior from a variety of timescales, from the very short (signals from the amygdala) to the quite ancient (genetic factors tracing back tens of thousands of years and more). It’s a dizzying tour that helps us understand the complexity of human action.

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Robert Sapolsky received his Ph.D. in neuroendocrinology from Rockefeller University. He is currently the John and Cynthia Fry Gunn Professor of Biology, Neurology, and Neurosurgery at Stanford University. His awards include a MacArthur Fellowship, the McGovern Award from the American Association for the Advancement of Science, and Wonderfest’s Carl Sagan Prize for Science Popularization.

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