In 1890 he was induced by William James to submit to hypnotism in order to see whether in his trance state his "Brown" memories would come back. The experiment was so successful that, as James remarks, "it proved quite impossible to make him, while in hypnosis, remember any of the facts of his normal life." The report continues:
He had heard of Ansel Bourne, but "didn't know as he had ever met the man." When confronted with Mrs. Bourne he said that he had "never seen the woman before," etc. On the other hand, he told of his peregrinations during the lost fortnight, and gave all sorts of details about the Norristown episode. The whole thing was prosaic enough; and the Brown-personality seems to be nothing but a rather shrunken, dejected, and amnesic extract of Mr. Bourne himself. He gave no motive for the wandering except that there was "trouble back there" and he "wanted rest." During the trance he looks old, the corners of his mouth are drawn down, his voice is slow and weak, and he sits screening his eyes and trying vainly to remember what lay before and after the two months of the Brown experience. "I'm all hedged in," he says, "I can't get out at either end. I don't know what set me down in that Pawtucket horse-car, and I don't know how I ever left that store or what became of it." His eyes are practically normal, and all his sensibilities (save for tardier response) about the same in hypnosis as in waking. I had hoped by suggestion to run the two personalities into one, and make the memories continuous, but no artifice would avail to accomplish this, and Mr. Bourne's skull today still covers two distinct personal selves.
An interesting circumstance with respect to this case and others is that the different personalities, although they inhabit the same body and divide between them the experiences of a single individual, not only regard themselves as distinct and independent persons but they exhibit marked differences in character, temperament, and tastes, and frequently profess for one another a decided antipathy. The contrasts in temperament and character displayed by these split-off personalities are illustrated in the case of Miss Beauchamp, to whose strange and fantastic history Morton Prince has devoted a volume of nearly six hundred pages.
In this case, the source of whose morbidity was investigated by means of hypnotism, not less than three distinct personalities in addition to that of the original and real Miss Beauchamp were evolved. Each one of these was distinctly different and decidedly antipathetic to the others.
Pierre Janet's patient, Madam B, however, is the classic illustration of this dissociated personality. From the time she was sixteen years of age, Léonie, as she was called, had been so frequently hypnotized and subjected to so much clinical experimentation that a well-organized secondary personality was elaborated, which was designated as Léontine. Léonie was a poor peasant woman, serious, timid, and melancholy. Léontine was gay, noisy, restless, and ironical. Léontine did not recognize that she had any relationship with Léonie, whom she referred to as "that good woman," "the other," who "is not I, she is too stupid." Eventually a third personality, known as Léonore, appeared who did not wish to be mistaken for either that "good but stupid woman" Léonie, nor for the "foolish babbler" Léontine.
Of these personalities Léonie possessed only her own memories, Léontine possessed the memories of Léonie and her own, while the memories of Léonore, who was superior to them both, included Madam B's whole life.
What is particularly interesting in connection with this phenomenon of multiple personality is the fact that it reveals in a striking way the relation of the subconscious to the conscious. The term subconscious, as it occurs in the literature of psychology, is a word of various meanings. In general, however, we mean by subconscious a region of consciousness in which the dissociated memories, the "suppressed complexes," as they are called, maintain some sort of conscious existence and exercise an indirect though very positive influence upon the ideas in the focus of consciousness, and so upon the behavior of the individual. The subconscious, in short, is the region of the suppressed memories. They are suppressed because they have come into conflict with the dominant complex in consciousness which represents the personality of the individual.
"Emotional conflicts" have long been the theme of literary analysis and discussion. In recent years they have become the subject of scientific investigation. In fact a new school of medical psychology with a vast literature has grown up around and out of the investigations of the effects of the suppression of a single instinct—the sexual impulse. A whole class of nervous disorders, what are known as psychoneuroses, are directly attributed by Dr. Sigmund Freud and the psychoanalytic school, as it is called, to these suppressions, many of which consist of memories that go back to the period of early childhood before the sexual instinct had attained the form that it has in adults.
The theory of Freud, stated briefly, amounts to this: As a result of emotional conflicts considerable portions of the memories of certain individuals, with the motor impulses connected with them, are thrust into the background of the mind, that is to say, the subconscious. Such suppressed memories, with the connected motor dispositions, he first named "suppressed complexes." Now it is found that these suppressed complexes, which no longer respond to stimulations as they would under normal conditions, may still exercise an indirect influence upon the ideas which are in the focus of consciousness. Under certain conditions they may not get into consciousness at all but manifest themselves, for example, in the form of hysterical tics, twitchings, and muscular convulsions.