John if one's in a delta wave state one has shut down thought and emotion-someone could shut down their reaction to pain and experience of it too. It's a standard technique when resisting torture to pull yourself out of the experience, not to react to it and only experience the moment. Buddhists monks are just better able to do that because they usually have the ability to enter delta wave states. Breaking under torture is really a combination of thought about it and reaction to the pain, both of which can be controlled, but some people are immune from breaking under torture because they so freak out that they're no longer capable of coherent thought. Historically the idea that no one can resist torture is non-sense, though still the rule of thumb.