Anxiety Disorders: Obsessive-Compulsive Disorder Defines the criteria for this disorder, commonly know as OCD, one of the most prevalent of all psychiatric disorders. Using dramatic vignettes and interviews with professionals and educators in the field, this program explores the ritualized behaviors associated with the disorders and the resulting adverse effects, as well as relevant neurological findings unique to OCD. Challenges that these disorders present in home, vocational and clinical environments are also described.