March 18, 2010 2:49 PM Subscribe
UC Irvine neuroscientist James Fallon gives talks about the biological traits of psychopathic killers using brain scans and genetics. When his mother suggested he should look into his own biological traits, Dr. Fallon discovered that he has an inactive orbital cortex -- a common trait for psychopaths (pdf). He also found that he has all five gene variants linked to aggression, and is related to two infamous murderers. So, why isn't he a killer? He attributes it to nuture.
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