 Our inner voices can take many forms. They can cause us enormous anguish. They can cause friction in our relationships, impair our performance, destabilize us. It's enough to make anyone wish for a little peace and quiet. That's exactly what happened to the neuroscientist Jill Bolte-Taylor. In 1996, she suffered a stroke that silenced the voice of her inner tormentor. She described what that change was like in a TED talk.