Susan Boyle has recently revealed that she's been diagnosed with Asperger's syndrome, an autism spectrum disorder. Prior to her announcement, it was widely documented that Boyle's disability and self-professed "slowness" was the result of damage suffered at birth. So did that not actually happen?

A woman, whom the medical journal Current Biology simply calls SM, has a rare from of brain damage, and literally can not feel fear. But researchers sure had a good time trying to scare her!