
Contents
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Introduction Introduction
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Research Status and Description of Night Eating Syndrome Research Status and Description of Night Eating Syndrome
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History and Prevalence History and Prevalence
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Current Research Diagnostic Criteria Current Research Diagnostic Criteria
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Models of Night Eating Syndrome Models of Night Eating Syndrome
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Night Eating Syndrome as a Distinct Disorder Night Eating Syndrome as a Distinct Disorder
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Continuum with Other Eating Disorders Continuum with Other Eating Disorders
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Continuum with Sleep Disorders Continuum with Sleep Disorders
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Continuum with Obesity Continuum with Obesity
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Night Eating Syndrome as Secondary to Other Psychopathology Night Eating Syndrome as Secondary to Other Psychopathology
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Evidence of Diagnostic Validity and Clinical Significance Using Models of Night Eating Syndrome Evidence of Diagnostic Validity and Clinical Significance Using Models of Night Eating Syndrome
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Research Needed to Clarify the Status of Night Eating Syndrome Research Needed to Clarify the Status of Night Eating Syndrome
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Research Status and Description of Purging Disorder Research Status and Description of Purging Disorder
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History and Definition History and Definition
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Prevalence and Epidemiology Prevalence and Epidemiology
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Models of Purging Disorder Models of Purging Disorder
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Purging Disorder as a Distinct Axis I Psychiatric Disorder Purging Disorder as a Distinct Axis I Psychiatric Disorder
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Purging Disorder on a Continuum with Other Eating Disorders Purging Disorder on a Continuum with Other Eating Disorders
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Evidence of Diagnostic Validity and Clinical Significance of Models of Purging Disorder Evidence of Diagnostic Validity and Clinical Significance of Models of Purging Disorder
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Research Needed to Clarify the Status of Purging Disorder Research Needed to Clarify the Status of Purging Disorder
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Research Status and Description of Aytpical Anorexia Nervosa Research Status and Description of Aytpical Anorexia Nervosa
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History and Definition History and Definition
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Prevalence Prevalence
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Evidence of Diagnostic Validity and Clinical Significance Using Models of Atypical Anorexia Nervosa Evidence of Diagnostic Validity and Clinical Significance Using Models of Atypical Anorexia Nervosa
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Research Needed to Clarify the Status of Atypical Anorexia Nervosa Research Needed to Clarify the Status of Atypical Anorexia Nervosa
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Research Status and Description of Orthorexia Nervosa Research Status and Description of Orthorexia Nervosa
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History and Definition History and Definition
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Prevalence Prevalence
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Models of Orthorexia Nervosa Models of Orthorexia Nervosa
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Research Needed to Clarify the Status of Orthorexia Nervosa Research Needed to Clarify the Status of Orthorexia Nervosa
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Future Directions Future Directions
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Summary and Conclusions Summary and Conclusions
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References References
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23 Emerging Syndromes
Get accessKelly C. Allison Department of Psychiatry Perelman School of Medicine at the University of Pennsylvania Philadelphia, PA
Jennifer D. Lundgren Department of Psychology University of Missouri, Kansas City Kansas City, MO
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Published:06 March 2017
Cite
Abstract
The Diagnostic and Statistical Manual, fifth edition, of the American Psychiatric Association (2013) has designated several disorders under the diagnosis of otherwise specified feeding and eating disorder (OSFED). This chapter evaluates three of these, night eating syndrome (NES), purging disorder (PD), and atypical anorexia nervosa (atypical AN). It also reviews orthorexia nervosa, which has been discussed in the clinical realm as well as the popular press. The history and definition for each is reviewed, relevant theoretical models are presented and compared, and evidence for the usefulness of the models is described. Empirical studies examining the disorders’ independence from other disorders, comorbid psychopathology, and, when available, medical comorbidities, are discussed. Distress and impairment in functioning seem comparable between at least three of these emerging disorders and threshold eating disorders. Finally, remaining questions for future research are summarized.
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