Paul Frewen at the University of Western Ontario did a series of brain scans of people with PTSD who suffered from alexithymia. One of the participants told him: “I don’t know what I feel, it’s like my head and body aren’t connected. I’m living in a tunnel, a fog, no matter what happens it’s the same reaction—numbness, nothing. Having a bubble bath and being burned or raped is the same feeling. My brain doesn’t feel.”