Jim Fallon is a US-based neuroscientist. In a weird coincidence at work several years ago, Jim says he accidentally discovered that his own brain scans showed identical activity to that of a psychopath. This week, Jim faces questions from world experts to discuss his self-diagnosis and to broadly discuss empathy (or lack of it). Insight: Tuesdays at 8:30pm on SBS ONE http://www.sbs.com.au/insight