She rose at command and at once made an attempt to seek out the woman to whom she felt attracted and was even violent in her attempts to do so .sx Finally she became less violent , went to bed and slept through the night without stirring .sx It is convenient at this stage to name the day or waking phase Gwen I and the dissociated or sleeping phase Gwen II .sx Throughout Gwen I had no knowledge of what happened to Gwen II , though Gwen II was apparently cognisant of some of the experiences of Gwen I. By acquiring information from Gwen II and bringing it to the attention of Gwen I , the patient was being encouraged to deal with the unpleasant memories of her past life .sx At this stage Gwen I was able to face them easily , but was unable to face their logical conclusions .sx At first Gwen I had slipped directly into Gwen II when she had to face consciously the unpleasant facts of the aspirin episode .sx Subsequently she was able to discuss the facts of this and other episodes quite frankly , but when she tried to apply them to her conduct she at once slipped into Gwen II either directly or through an intermediate period of sleep .sx Two nights later the patient rose and walked again , demanding the presence of the observer so that she might give him a letter she had received .sx She talked about her experiences when living with Mrs Z. and continued :sx " Oh , there must be a way out .sx To get away from it all from Mrs Z.'s place and everybody .sx I couldn't get away myself .sx I used to be so happy all the week , and the day I was coming home I didn't know what was the matter with me .sx " Later she spoke as if addressing Mrs Z. " Are you coming to bed soon ?sx I'm lonely up here alone , Mr M. Mrs Z. does not love me so much now .sx Perhaps you want her more than I do .sx I can't get used to it .sx I've given her every bit of me .sx She says I'm jealous .sx I don't think I am .sx I loved her and she's got such a lot of people to love her and I've got only her to love me .sx I can't imagine life without you it's only been you and me .sx I'm not me .sx No .sx I used to love her but when she came near I felt she should go away .sx She did not come much in the end .sx She was always with Mr M. because Mr Z. did not come home until ten o'clock .sx She said I would wreck her home if I said anything .sx " In subsequent interviews with Gwen I and Gwen II the information obtained was largely a repetition or elaboration of that already detailed .sx The practice was continued of discussing with Gwen I the information gained from Gwen II .sx With Gwen II the early attraction to Mrs Z. and the hatred for the observer were gradually reversed .sx Throughout Gwen I was quite friendly .sx Finally , when satisfactory control was gained over Gwen II , repeated suggestions were made that the sleep-walking shouldcease and that the patient should look forward to her work with children .sx The sleep-walking became less frequent and finally ceased , though for a time there was restlessness each night about one hour after going to sleep .sx Association with Mrs Z. was definitely forbidden and the patient sent back to work .sx For twelve months she continued to do her work fairly well with an occasional relapse of sleep-walking .sx Then she felt that she must at least see Mrs Z. , went to the church she attended and spoke to her .sx Next day Gwen Y. was seen by the observer and during the interview lapsed into Gwen II three times .sx Later she dissociated for a longer period and suffered a complete relapse .sx III .sx COMMENTARY .sx The case is that of a patient who suffered a complete and violent cessation of all her family relationships at the age of five years .sx With this was associated her first experience of death .sx It was followed by a long period of education in an orphanage , during which there occurred certain incidents which showed that the patient's early experiences had disordered to some extent her reaction to the events of her daily life .sx At the same time there appeared some evidence of the dependence upon external circumstances which may characterize those reared in an institution .sx After leaving the institution her morbid attraction to death and her dependence upon circumstances were demonstrated by certain incidents during the following six years .sx Throughout her social contacts appeared to be normal apart from those with the opposite sex ; while at the same time her fondness for small children `who rarely died' influenced the choice of her work .sx Following two illnesses , during which she was suspected to be suffering from tuberculosis , she came into contact with the woman who was to influence her for the next five and a half years .sx During the next eighteen months she felt a distaste for the advances this woman made towards her , yet she finally `collapsed' when on a visit to a friend at her house .sx During the next three years she remained in the house and appeared to have dissociated completely on several occasions and for long periods .sx At the same time sleep-walking and talking during the periods of somnambulism became habitual .sx During the next fifteen months , when living away from the house , the patient behaved normally except during her weekly visits .sx Finally , with her return to the house , the knowledge that her friend was associating with someone else and the demand that the patient should leave for her own good , symptoms and physical signs of hysteria supervened .sx It was in this condition that the patient came under observation .sx While the patient was under observation the following features were noted :sx ( 1 ) The physical symptoms of hysteria which had been present for one month without any psychological symptoms soon disappeared and were replaced by psychological symptoms .sx ( 2 ) Sleep-walking was the prominent symptom .sx It began about one hour after the patient went to sleep , was characterized by extreme attraction to the woman with whom she had lived and hatred for the observer , and was associated with talking about events of her previous life , a confused memory of events during the day , and a tendency to escape from the situation by way of suicide .sx ( 3 ) During the day the patient was sometimes restless but as a rule well controlled , was friendly towards the observer and had no know-ledge of events during sleep-walking or during the periods of dissociation .sx On several occasions , when the patient was obliged to face important events in her past history , she dissociated completely either directly or through an intermediate period of sleep into a phase which differed in no essential feature from that observed during periods of sleep-walking .sx All association between the patient and her friend was stopped , the influence of the latter over the sleep-walking and dissociated phases was gradually replaced by that of the observer , an attempt was made to bring the memories of these phases to the knowledge of the patient , and finally suggestions were made successfully in the dissociated phase that sleep-walking should cease .sx ( 6 ) A subsequent contact between the patient and her friend resulted in a relapse and the recurrence of the sleep-walking and dissociation of personality .sx ( 7 ) While the patient was under observation , all stages were observed from restlessness and muttering during sleep to simple sleep-walking , sleep-walking followed by a phase of dissociation under the control of her friend , dissociation of personality through an intermediate period of sleep , and complete dissociation directly from the usual condition of the patient .sx It is apparent that the patient's condition was a psychoneurotic manifestation based upon experiences in early childhood , and that the more recent symptoms were the result of a dissociation of personality based upon a conflict between the patient's ideals and a homosexual influence to which she submitted completely only during her dissociated and sleep-walking phases .sx IV .sx DISCUSSION .sx Somnambulism has been defined as a condition of hysterical automatism in which the patient carries out actions without being aware of them at the time or on awakening .sx Generally it is agreed that there is a splittingof the personality of short duration .sx Janet described somnambulism as a dissociation of consciousness which he took to be typical of all cases of hysteria , and on the basis of this phenomenon sought to explain the commoner and simpler symptoms described as hysterical .sx Babinski , on the other hand , based his study of hysteria on the commoner and simpler symptoms and decided that they were the result of suggestion .sx Other observers have attempted to carry this view of the symptoms further and to explain the symptom described by Janet as somnambulism in the same way .sx Jung classified individuals into introverts and extroverts and pointed out that in cases of severe psychasthenia in extroverts somnambulism was often added to the common symptoms .sx In a summary of the somnambulistic states Gordon accepted the view that somnambulism depended essentially upon mental conflicts , and that hysterical symptoms , while associated with conflicts , did not necessarily depend upon them .sx In short he regarded somnambulism and the allied conditions as a separate neurosis .sx " Somnambulism consists of a temporary restoration to consciousness of a repressed complex in such a way that it occupies the mind for the time being to the total or almost total exclusion of every-thing else .sx " While drawing no general conclusions , Gordon found the concept of the uniformity of somnambulism , fugues and dissociated personality grouped together under the name somnambulistic states of considerable help in controlling treatment in this type of case .sx In the case described the uniformity and essential similarity of restlessness during sleep , somnambulism , day dreaming , imperfect dissociation of personality and complete dissociation of personality would appear to be evident .sx Each of these phases was controlled by a complex repressed during consciousness , and it was possible to cause the patient to dissociate completely by bringing to her attention the details of incidents she discussed only during the somnambulistic state .sx The case suggests that restlessness during sleep , somnambulism , dissociation of personality and day dreaming are simply varying degrees of dissociation of personality in which a complex or influence repressed during consciousness returns to active consciousness , assumes control of the personality , and influences the thoughts , speech and actions observed clinically during such phases .sx In this case events in the past conditioned the development of the neurosis , whereas a more recent conflict was responsible for the development of the different somnambulistic states to which the patient was subject .sx In regard to the former the fixation of the libido at the level of mother attachment would appear to have been the basis of the neurosis , .sx whereas in regard to the latter the case agrees with Jung's explanation that a neurosis does not depend merely upon an event in the past but upon an event in the present which the patient is seeking to avoid or is unable to face .sx Later , the development of physical symptoms and the temporary disappearance of the mental unrest and somnambulistic states following the threat to the association to which the patient was committed suggested that the ego ideal was also an important factor in the production of the clinical picture .sx This suggestion was also supported by the fact that the control of the physical symptoms was followed by the return of the psychological symptoms .sx It is difficult to assume that the somnambulistic states are the result of a partial dissociation of personality if it be not assumed at the same time that the physical symptoms are the result of a similar dissociation on the somatic level .sx In the case described the relations of the psycho-logical and physical symptoms may be summarized as follows .sx Both were based upon nocuous events in early life .sx The somnambulistic states appeared after the development of a conflict between the subconscious influence of another individual and the race ideal .sx The physical symptoms followed a threat to the security of the situation which had developed in spite of the above conflict and also as a reaction to factors which had at other times produced somnambulistic states .sx