"[E.Hilgard, 1979] hypnotized subjects so that they would report pain only through writing. The writing was automatized so that it would not require conscious attention, and the subject was given a suggestion of analgesia, making him unaware of any pain. The subject's hand was then immersed in cold water to produce pain. At the conscious level, the analgesia was effective: highly hypnotizable subjects reported no pain. The interesting finding was that the automatic writing estimates of the magnitude of pain outside of the subject's awareness steadily increased as the hand remained immersed, which is precisely the pattern that occurs without hypnotic analgesia.... while conscious experience of pain may be eliminated with hypnosis, unconscious affect can persist."