"The problem isn't just that the techniques are physical. The problem is that the mind itself is physical...You can't torture the mind without altering the brain. And since the brain is part of the body—in fact, the part of the body that most influences all the others—the marks you leave are pervasive. You can alter any physical process in which the mind is involved: sleep, eating, conversation, love, going out in public, or all of the above."
Does torture leave "mental scars?" Of course it does.