The proper diagnostic definition of Obsessive Compulsive Disorder (OCD) has been hotly debated in research and academic communities. There are those who believe true OCD manifests by both obsessions and compulsions, and others who believe OCD is a continuum that may include the presence of only obsessions or only compulsions as part of an Obsessive Compulsive Spectrum Disorder. The debate is not just academic, as it relates to how these disorders may originate, and how they may best be treated. Obsessive-Compulsive Disorder: Subtypes and Spectrum Conditions explores these debates, summarizing the evidence base behind each question, with a conclusion as to how this disorder is best defined going forward, and the conclusions to be drawn in relation to treatment. Divided into two sections, part 1 addresses the heterogeneity of OCD, exploring the concept of content specific subtypes, and the evidence to support such a typology. Each chapter here critically reviews the literature with respect to symptomatology, empirically supported etiologic and conceptual models, support for the symptom presentation as a valid OCD subtype, and a review of subtype-specific treatment literature. These subtypes include contamination and decontamination, doubting and compulsive checking, and symmetry-order and arranging. Part 1 additionally explores compulsive hoarding, tic-related OCD, and autogenous and reactive obsessions. Part 2 explores Obsessive Compulsive Spectrum Disorders (OCS), including trichotillomania, gambling, body dysmorphic disorder, hypochondriasis, tic disorders and Tourette syndrome, eating disorders, obsessive compulsive personality, and compulsive sexual behavior. For each disorder, chapters review the clinical presentation, etiologic and conceptual models, the empirical evidence pertaining to the disorder's standing as an OCS condition, and the ramifications for treatment. Concluding chapters in both sections summarize the evidence toward a recommendation of how OCD is conceptualized for diagnostic and treatment purposes going forward.

Obsessive-compulsive disorder (OCD) affects one person in 40 and can cause great suffering. This volume provides the first comprehensive summary of our understanding of this enigmatic condition, summarizing current work ranging from genetics and neurobiology through cognitive psychology, treatment, personal experiences, and societal implications.

This is the first book to address the clinical and neurobiological interface between schizophrenia and obsessive-compulsive disorder (OCD). There is growing evidence that obsessive-compulsive symptoms in schizophrenia are prevalent, persistent and characterized by a distinct pattern of familial inheritance, neurocognitive deficits and brain activation. This text provides guidelines for differential diagnosis of schizophrenic patients with obsessive-compulsive symptoms, and patients with primary OCD alongside poor insight, psychotic features or schizotypal personality. Written by a leading expert in the coexistence of obsessive-compulsive and schizophrenic phenomena, Schizo-Obsessive Disorder uses numerous case studies to present diagnostic guidelines and to describe a recommended treatment algorithm, demystifying this complex disorder and aiding its effective management. The book is essential reading for psychiatrists, neurologists and the wider range of multidisciplinary mental health practitioners.

A review of current literature on obsessive compulsive disorder (OCD) and its associated spectrum conditions, including body dysmorphic disorder (BDD), hoarding, trichotillomania, tic disorders, and Tourette's Syndrome.

Obsessive-compulsive disorder (OCD) is a complex set of thoughts and behaviors that can vary greatly from person to person and can be related to and complicated by a wide range of other disorders. Clinicians are confronted with the challenge of accurately classifying its many variants and developing effective, systematic treatments for them. Some believe that OCD and related problems should be treated as subtypes of one condition; others argue that OCD is composed of a spectrum of many similar conditions that should be treated individually. In this handbook, Jonathan S. Abramowitz, Dean McKay, and Steven Taylor present an approach to diagnosis and treatment that considers subtype and spectrum concepts. They examine specific presentations of OCD—the symptoms—that are often seen in practice as well as the many disorders that may fall within the OCD spectrum. For each symptom and putative spectrum condition, they discuss empirical support, theories of etiology, and treatment issues. The volume covers cognitive-behavioral and biological factors, as well as the latest approaches to psychological and pharmacologic therapy, including complicating factors in treatment. In concluding chapters, the authors critically address the current literature on proposed subtype and spectrum disorders, consider the clinical implications of the literature, and map out a comprehensive, integrated approach for understanding OCD and related conditions. The only work on OCD that covers treatment options for specific symptoms and the full spectrum of related disorders, this handbook is a must-have for clinicians who are dedicated to improving the lives of patients with these challenging mental conditions.

Providing clinicians and patients with the latest developments in research, this new edition is a succinct and practical introduction to the diagnosis, evaluation and management of OCD and other related disorders. Part of the Oxford Psychiatry Library series, this pocketbook includes individual chapters on the phenomenology, pathogenesis, pharmacotherapy and psychotherapy of OCD and other related disorders, and features fully updated content and research. The book also includes a helpful resources chapter, and an Appendix with summaries of the major rating scales used to assess patients with OCD, which will be of use to both clinicians and patients. Obsessive-compulsive disorder (OCD) and Obsessive-compulsive-related disorders (OCRDs) are anxiety disorders characterized by obsessions and compulsions, and varying degrees of anxiety and depression. OCRDs are considered to be one of the most disabling of psychiatric disorders and they present a tremendous economic and social burden, both for the affected individual, their family, and for society at large. In contrast to other psychiatric conditions of a comparable or lesser prevalence and patient burden, relatively little is understood about the aetiology, and cognitive effects of OCRDs.

According to recent estimates, one in 50 adults in the United States has obsessive-compulsive disorder and twice that many have had this disorder at some point in their lives. This issue includes articles on the phenomenology of OCD, hypochondriasis, body dysmorphic disorder, genetics and OCD, trichotillomania, Tourette's syndrome, addictive disorders, pharmacotherapy, psychotherapy, and immunology