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The role of the term schizophrenia in the decline of diagnoses of multiple personality.

The syndrome of multiple (dissociated) personality fell into disrepute around 1910. This has been attributed to loss of interest in hypnosis; psychiatrists believed the syndrome resulted from hypnosis and that they were duped. However, around 1910 an important event occurred in psychiatry: Bleuler introduced the term "schizophrenia' to replace "dementia praecox.' This factor also played a role in the decline of recognition of the multiple personality syndrome, and many of these cases were diagnosed as schizophrenia. A review of Index Medicus from 1903 through 1978 shows a dramatic decline in the number of reports of multiple personality after the diagnosis of schizophrenia "caught on,' especially in the United States. A review of clinical reports indicates that many patients with multiple personality had been diagnosed and treated as schizophrenics.

Dissociative Identity Disorder↗

Multiple personalities. A report of 14 cases with implications for Schizophrenia and hysteria.

Evidence exists to support the concept of pathology or diseases of hypnosis. Multiple personalities is such a syndrome, as are many or perhaps all cases of hysteria (Briquet's syndrome). The crux of multiple personalities is the subject's unrecognized abuse of self-hypnosis, by which she creates personalities, beginning at age 4 to 6 years. The process of self-hypnosis allows the delegation of an experience or a function to an alter ago, henceforth relegated to unconsciousness by the amnesia of hypnosis. Most of these patients qualify for the diagnosis of hysteria (Briquet's syndrome), and many are diagnosed incorrectly as being schizophrenic because of their hallucinations, paranoid ideas, and "delusions." Hysteria may owe many of its characteristics to the self-hypnotic induction of conversion and other symptoms.

Adaptation, Psychological↗

EEG studies of two multiple personalities and a control.

There are few reports of EEG findings in patients with multiple personalities. In our study, EEGs were visually scanned and frequency analyzed in two patients with multiple personalities and one control. Auditory and visual evoked responses were also obtained from one of the patients and the control. The visually scanned EEGs and the evoked responses demonstrated few differences among the various personalities in each patient, whereas the frequency analysis showed the greatest number of significant differences among the "personalities" in the control. These data suggest that EEG differences among personalities in a person with multiple personalities involve intensity of concentration, mood changes, degree of muscle tension, and duration of recording, rather than some inherent difference between the brains of persons with multiple personalities and those of normal persons.

Adult↗

Psychotherapy in light of internal multiplicity.

The view that the self has multiple parts and that these appear in people seeking psychotherapy--and people conducting psychotherapy--is shared by clinicians of various orientations and supported by psychological research. It is useful for clinicians to think of patients as multifaceted and pay attention to the changes between facets that occur during therapy. They can thus help hidden parts to surface, facilitate dialogue between parts not in contact with each other, and convince excessively dominant or oppressive parts to make room for other adaptive facets. The authors contributing to this issue of Journal of Clinical Psychology: In Session describe, from their different theoretical perspectives, how they deal with patients' and therapists' inner multiplicity in clinical practice.

Communication↗

Behavioral measures of multiple personality: the case of Margaret.

This report concerns the systematic study of a 28-year-old subject diagnosed as multiple personality. The purpose of this study was to examine similarities and differences in three of her distinct personalities, utilizing behavioral measures. Three tasks were presented to the personalities: a memory task; a perceptual-motor task; and an attention task utilizing event-related potentials. The memory task and perceptual-motor task indicated that the three personalities shared information and that learning extended from one personality to the next. The attention task indicated that the three personalities were differentially processing the stimuli that were presented to them, as measured by the ERPs. The results are discussed in the context of the individual case and of the phenomena of multiple personality.

Adult↗

Neurophysiological and neuropsychological study of two cases of multiple personality syndrome and comparison with chronic hysteria.

Two cases of multiple personality were studied neurophysiologically and neuropsychologically. Bilateral frontal (Right greater than Left) and left temporal dysfunction was present in both cases, on neuropsychological indicators. Both cases on EEG analysis, were in a state of relative left hemisphere activation, across all cerebral regions and task conditions. The one case who was cured with hypnotherapy, after recovery showed normal left hemisphere functions neuropsychologically but remained in a state of relative left hemisphere activation electrophysiologically. This is in contrast to women with chronic hysteria who exhibit relative right hemisphere activation in all regions and across all conditions. Both patients were unmedicated throughout. A neurophysiological model to account for these findings is presented.

Adult↗