ABSTRACT

MANY classifications of the different stages of hypnosis have been put forward, and it is difficult to find two authors who are in agreement as to how many stages may be recognized, or by what names they are to be known. All hypnotic subjects, however, may be divided into two great groups, according to whether the events of hypnosis are forgotten or not in the waking state; and the term “somnambule” has been very generally used to describe those who, when hypnosis is terminated, are totally amnesic for all that has happened during the trance.