Obsessive-compulsive spectrum disorders (OCSDs) are conditions that, while not meeting diagnostic criteria for obsessive compulsive disorder (OCD), share many similar symptoms. The past decade has seen a tremendous growth in knowledge on the nature, treatment, assessment, and basic science of OCSDs. This book reviews the latest research on OCD and OCSDs and provides evidence-based guidance for assessment and treatment. Several different conditions are covered, including hoarding disorder; body dysmorphic disorder; hair pulling, skin picking, and other body-focused repetitive behaviors; Tourette disorder and tics; hypochondriasis; as well as OCD. Importantly, the book takes a life-span perspective, with specific attention given to the unique aspects of OCSDs across different age groups. Both psychological and pharmacological treatments are reviewed, as well as comorbidities and other complications. Two special chapters review the neurobiological and behavioral genetic support for the obsessive compulsive spectrum. By bridging the psychological and biomedical perspectives on OCSDs, this book will appeal to a broad range of clinicians and researchers operating within this new diagnostic framework.

Introduction : defining the scope and boundaries of the obsessive-compulsive specturm /Dean McKay and Eric A. Storch -- Part I. Assessment and psychological treatment -- ch. 1. Obsessive-compulsive disorder in adults / Blaise Worden and David F. Tolin -- ch. 2. Pediatric obsessive-compulsive disorder / Michelle R. Gryczkowski and Stephen P.H. Whiteside -- ch. 3. Obsessive-compulsive disorder in young children / Michael R. Walther [and others] -- ch. 4. Tractable impediments to cognitive behavior therapy for pediatric obsessive-compulsive disorder / Adam B. Lewin -- ch. 5. Treatment of obsessive-compulsive spectrum disorders in late life / Catherine Ayers and Sadia Najmi -- ch. 6. Hoarding disorder / Jordana Muroff, Maxwell E. Levis, and Christiana Bratiotis -- ch. 7. Body dysmorphic disorder / Andrea S. Hartmann [and others] -- ch. 8. Hair pulling, skin picking, and other body-focused repetitive behaviors / Ivar Snorrason and Douglas W. Woods -- ch. 9. Tourette's disorder and tics / Michael B. Himle and Loran P. Hayes -- ch. 10. Health anxiety / Heather D. Hadjistavropoulos, Nicole M. Alberts, and Gordon J.G. Asmundson -- Part II. Comorbidities -- ch. 11. Depression in the obsessive-compulsive spectrum / Jonathan S. Abramowitz and Shannon M. Blakey -- ch. 12. Suicidal and nonsuicidal self-injury in the obsessive-compulsive spectrum / Margaret S. Andover and Blair W. Morris -- ch. 13. Restricted repetitive behaviors : connections between autism spectrum and obsessive-compulsive spectrum disorders / Sunday M. Grancis, Soo-Jeong Kim, and Suma Jacob -- Part III. Pharmacological treatment -- ch. 14. Pharmacotherapy for obsessive-compulsive and related disorders among children and adolescents / S. Evelyn Stewart and Andrea C. Stachon -- ch. 15. Pharmacotherapy for obsessive-compulsive and related disorders among adults / Jon E. Grant, Brian L. Odlaug, and Liana R.N. Schreiber -- Part IV. Neuroscientific support for the obsessive-compulsive spectrum -- ch. 16. Twin studies of the genetic and environmental etiology of obsessive-compulsive and related phenomena / Steven Taylor -- ch. 17. Functional neuroimaging and models for obsessive-compulsive disorder and obsessive-compulsive spectrum disorders / Kyle A.B. Lapidus [and others].