Neuroscientists Can Tell if You’re a Psychopath

You’re walking down the street, and you see an old woman trip and fall. It’s nasty. The bystander effect doesn’t come in to play here — people all around her are jostling to help. From afar you see the bruise that has formed instantaneously on her temple, swelling larger and larger after her every breath, and you can’t help but wince. The sensations you get from merely witnessing the fall are immediate —…