Recent studies ( 1 ) have attempted to evaluate both the meaningfulness and the genuineness of behavior induced through hypnotic techniques. Utilizing a Reid Polygraph, studies have been undertaken in connection with a variety of hypnotic phenomena including age regression, inducing hallucinations, hypnotic anesthesia, and alterations in temporal and spacial orientation as well as induced variations in body image awareness ( 2 ) . The results have indicated that, with increasing involvement in the hypnotic relationship, as evidenced by rapidity with which changes in sensory and motor behavior may be induced, there appears to be an increasing acceptance uncritically, of the nature and the meaning of hypnotically induced behavior. In this respect, we find that polygraphic evidence from experimental Ss reveals their essential belief in the reality of subjective experience and response in the same way that they would accept on a non-hypnotic level a sense of belief in other conscious experiences such as dreaming, thinking and perceptual recognition. The acceptance of hypnotically induced behavior would appear psychodynamically to be consistent with the implication that hypnosis involves a degree of self-exclusion and the capacity to accept subjective responses without the necessity for critical evaluation by the self, allowing for the structuring of hypnotic perception through the ego involvement with the hypnotist and the focusing of attention upon that process. Current studies are attempting to compare the psychodynamic patterns of dreaming with the patterns of hypnotically induced behavior. As part of this study, nocturnal dreams are being smdied in connection with hypnotic dreams and other forms of perceptual alterations induced through hypnosis. It is hoped that further explorations of this sort will lead to some clarification of the regre:sive aspects of subjective responses as they occur in a variety of states of consciousness of which hypnosis is one.