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Query: UMLS:C0002622 (amnesia)
 5,520 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

This study explores the relationship between traumatic experiences and dissociative phenomena in a large group of eating disorder patients (N = 98). Traumatic experiences were assessed by means of a self-report questionnaire and a clinical interview; dissociative experiences were assessed with the newly developed self-reporting Dissociation Questionnaire (DIS-Q). About 25% of the patients reported to have experienced traumatic events in their personal life and this subgroup had significantly higher scores on the DIS-Q, compared with normal control subjects. About 12% of our patient sample mentioned dissociative experiences to a degree as high as in a group of patients with dissociative disorders. Amnesia turned out to be the most specific characteristic in trauma-induced dissociation. These data suggest that trauma-induced dissociative experiences may play an important role in the development of a subgroup of patients with an eating disorder.
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PMID:Dissociative experiences and trauma in eating disorders. 847 87

The present study evaluates the relationship between abuse experiences, dissociation and eating disorders (ED) in an Italian female college sample. In particular, the study aims at comparing the dissociative effects of abuse experiences in ED and normal subjects. Dissociative experiences were assessed by Dissociation Questionnaire (DIS-Q), which appeared to be an internally consistent and valid instrument. The presence of ED in 491 female college students was assessed by a two-stage epidemiological procedure. The factor structure of the DIS-Q in our sample allowed us to identify specific features that could differentiate ED subjects from normals. Experiences of losing control appeared to characterize ED subjects and they were more serious in ED individuals who reported sexual or physical abuse. Normal subjects who reported a serious trauma had more frequently amnesia, identity alterations, derealization and depersonalization experiences when compared to nonabused subjects.
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PMID:Dissociative experiences and eating disorders in a female college sample. 918 83

The enduring and contentious hypothesis that sleepwalking and night terrors are symptomatic of a protective dissociative mechanism is examined. This is mobilised when intolerable impulses, feelings and memories escape, within sleep, the diminished control of mental defence mechanisms. They then erupt but in a limited motoric or affective form with restricted awareness and subsequent amnesia for the event. It has also been suggested that such processes are more likely when the patient has a history of major psychological trauma. In a group of 22 adult patients, referred to a tertiary sleep disorders service with possible sleepwalking/night terrors, diagnosis was confirmed both clinically and polysomnographically, and only six patients had a history of such trauma. More commonly these described sleepwalking/night terrors are associated with vivid dream-like experiences or behaviour related to flight from attack. Two such cases, suggestive of a dissociative process, are described in more detail. The results of this study are presented largely on account of the negative findings. Scores on the dissociation questionnaire (DIS-Q) were normal, although generally higher in the small "trauma" subgroup. These were similar to scores characterising individuals with post-traumatic stress disorder. This "trauma" group also scored particularly highly on the anxiety, phobic, and depression scales of the Crown-Crisp experiential index. In contrast the "no trauma" group scored more specifically highly on the anxiety scale, along with major trends to high depression and hysteria scale scores. Two cases are presented which illustrate exceptional occurrence of later onset of sleepwalking/night terrors with accompanying post-traumatic symptoms during wakefulness. It is concluded that a history of major psychological trauma exists in only a minority of adult patients presenting with sleepwalking/night terror syndrome. In this subgroup trauma appears to dictate the subsequent content of the attacks. However, the symptoms express themselves within the form of the sleepwalking/night terror syndrome rather than as rapid eye movement sleep related nightmares. The main group of subjects with the syndrome and with no history of major psychological trauma show no clinical or DIS-Q evidence of dissociation during wakefulness. The proposition that, within the character structure of this group, the mechanism still operates but exclusively within sleep remains a possibility.
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PMID:Is there a dissociative process in sleepwalking and night terrors? 1126 87