Why do some people become psychopaths?

Psychopathy has long captured the public imagination. Newspaper column inches and Hollywood films alike mirror our curiosity and capture our natural fear of characters who seem to lack basic humanity. Why do some people develop psychopathy and can it be prevented? Rosalind Franklin Lecture 2017 presented by Professor Essi Viding. The talk was filmed on October 19 at the Royal Society. For more information and events: