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Potential shared features of EDs and OCD include age of onset, course of illness, obsessions, compulsions and ritualistic behaviors, and thought action fusion. Shared mechanisms that may explain ED-OCD comorbidity include genetic and neurobiological mechanisms, anxiety and fear, repetitive negative thinking, perfectionism, intolerance of uncertainty, distress tolerance, and impulsivity. Based on these shared features and mechanisms, a theoretical conceptualization of ED and OCD comorbidity is developed, and outline considerations for assessment, differential diagnosis, treatment, and future research regarding ED-OCD comorbidity are described.<\/jats:p>","DOI":"10.1891\/jcpsy-d-2021-0011","type":"journal-article","created":{"date-parts":[[2022,7,28]],"date-time":"2022-07-28T02:45:11Z","timestamp":1658976311000},"page":"226-246","source":"Crossref","is-referenced-by-count":15,"title":["Psychiatric Comorbidity Among Eating Disorders and Obsessive-Compulsive Disorder and Underlying Shared Mechanisms and Features: An Updated Review"],"prefix":"10.1891","volume":"36","author":[{"given":"Brenna M.","family":"Williams","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mackenzie L.","family":"Brown","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Luis","family":"Sandoval-Araujo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Street","family":"Russell","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cheri A.","family":"Levinson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"793","published-online":{"date-parts":[[2022,7,26]]},"reference":[{"issue":"7","key":"2022072723450685000_36.3.226.1","doi-asserted-by":"crossref","first-page":"407","DOI":"10.1177\/070674370605100702","article-title":"The psychological treatment of obsessive-compulsive disorder","volume":"51","year":"2006","journal-title":"The Canadian Journal of Psychiatry"},{"issue":"3","key":"2022072723450685000_36.3.226.2","doi-asserted-by":"crossref","first-page":"339","DOI":"10.1007\/s00127-010-0337-5","article-title":"Obsessive\u2013compulsive disorder in the community: 12-month prevalence, comorbidity and impairment","volume":"47","year":"2012","journal-title":"Social Psychiatry and Psychiatric Epidemiology"},{"issue":"4","key":"2022072723450685000_36.3.226.3","first-page":"412","article-title":"Efficacy of dialectical behavior therapy on clinical signs and emotion regulation in patients with obsessive-compulsive disorder","volume":"7","year":"2016","journal-title":"Mediterranean Journal of Social Sciences"},{"key":"2022072723450685000_36.3.226.4","doi-asserted-by":"publisher","DOI":"10.1016\/j.cpr.2009.08.001"},{"key":"2022072723450685000_36.3.226.5","doi-asserted-by":"crossref","unstructured":"American Psychiatric Association. 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