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ISSN: 2378-5756
Journal of Psychiatry
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Measurement of Nightmare Experience, and its Application in Research and Treatment of Psychiatric Disorders

Wei Wang* and Jiawei Wang

Department of Clinical Psychology and Psychiatry, School of Medicine, Zhejiang University College of Medicine, Hangzhou, China

*Corresponding Author:
Wei Wang
Department of Clinical Psychology and Psychiatry
School of Medicine
Zhejiang University College of Medicine
Hangzhou, China
Tel: +86-57188208188
E-mail: [email protected]

Received Date: June 02, 2017; Accepted Date: June 02, 2017; Published Date: June 09, 2017

Citation: Wang W, Wang J (2017) Measurement of Nightmare Experience, and its Application in Research and Treatment of Psychiatric Disorders. J Psychiatry 20: e111. doi:10.4172/2378-5756.1000e111

Copyright: © 2017 Wang W, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Editorial

Nightmares are typically extended, elaborate dream narratives, and usually occur during rapid eye movement period of sleep. Nightmare experience is accompanied by the disturbed affect culminating in arousal, which usually involves an individual’s efforts to avoid threats to survival, security, or physical integrity, but often results in awakening with rapid orientation and alertness [1]. Nightmare experience might also leave the individual negative emotions and cause obvious distress, emotional deregulation, or impairment in social, occupational, or other functions [2].

About 26% of community adults and 39.8% of psychiatric patients suffer from weekly nightmares, a frequency that is thought to reflect moderately severe pathology [3]. Many studies have reported a gender difference in nightmare frequencies. For instance, a meta-analysis including 111 independent studies demonstrated that women tended to report nightmares more often than men did but this gender difference was not found in children or in elderly [4]. Further, several candidate variables like dream recall frequency, depression, childhood trauma, and insomnia have been demonstrated to affect the nightmare frequency and to explain this gender difference. In addition, neuroticism trait and gender-specific socialization processes contribute a lot to this gender difference [5].

On the other hand, more detailed, comprehensive description regarding nightmare experience contents are needed besides the nightmare frequency. Keeping this in mind, a group of investigators have developed a Nightmare Experience Questionnaire (NEQ) using both exploratory and confirmatory factor analyses, in 321 Chinese university students who had a life-long nightmare experience [6]. This structure-validated NEQ has provided measures for four factors, namely Physical Effect, Negative Emotion, Meaning Interpretation and Horrible Stimulation. This study has also demonstrated some gender differences on two factors: women scored significantly higher on NEQ Negative Emotion and Meaning Interpretation factors than men did. Interestingly, the nightmare frequency was positively correlated with all the four NEQ factors.

Not surprisingly, nightmares are involved in many psychiatric disorders, indicating that there is a commonly underlying mechanism of psychological dysfunction and nightmare experience. For instance, in a functional magnetic resonance imaging study, scholars [7] used the resting-state paradigm in nightmare disorder patients, and found that the higher values of regional homogeneity in clusters within the left anterior cingulate cortex and right inferior parietal lobule, and lower regional homogeneity values within the left superior and inferior frontal gyri and bilateral middle occipital gyri in these patients. Moreover, NEQ Physical Effect was negatively correlated with regional homogeneity values in anterior cingulate cortex and inferior parietal lobule in these patients.

Before NEQ was developed, the recall of nightmare experience has been used in the treatment of nightmare and related sleep disorders. When treating nightmares, scholars [8] used the imagery rehearsal therapy (IRT) and prazosin, and found that the IRT combined with cognitive-behavioral therapy for insomnia showed more improvement in sleep quality compared to prazosin, or IRT alone. These results also encourage the application of the imagery rehearsal therapy or prazosin as a first-line intervention for post-traumatic stress disorder, or as an adjunctive therapy to reduce suicide risk in patients at risk of suicide with nightmares [9]. It is reasonable that we expect more reliable results using more solid description of nightmare experience in these patients. In this case, the NEQ might provide a great help.

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