James Fallon is a neuroscientist who's spent his career studying psychopaths, observing their character traits and examining their brains. One day by accident, he learned that his own brain scans matched patterns found in known psychopaths' scans. It turns out his family tree has more than its share of murderers. Anderson spoke to Fallon about what he believes saved him from becoming a full-blown psychopath and criminal.
Click here to find out where you fall on the psychopath spectrum.
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