obliguhl said:...there is no illusion of pain. Pain is Pain!
Depends how you define pain. I agree that if pain is defined simply as a brain phenomena, then no, there is no illusion of pain (assuming the same areas of the brain fire up!) However if pain is defined as a system - stimulation, nerve endings, a signal traveling through the nervous system to the brain where those same areas are fired up - then the "illusion of pain" would be the firing of those areas without the complicity of the rest of the system. i.e. without any external physical stimuli, and no intermediary signal transmission, the brain reacts as if there were.
But I can see many avenues for disagreement!
JBArk