For several decades there has been an increasing move towards viewing the psychotic illnesses from a dimensional perspective, seeing them as continuous with healthy functioning. The idea, concentrating mostly on schizophrenia, has generated considerable theoretical debate as well as empirical research, conducted under the rubric of 'schizotypy'. This book offers a timely discussion of the most significant themes and developments in this research area. Divided into four key sections which represent current concerns in schizotypy research – Measurement, Brain and Biology; Development and Environment; Consequences and Outcomes; and Future Directions – chapters reflect a broad range of approaches and discuss varied theoretical perspectives on schizotypy. Topics include: cognitive and perceptual biases psychometric assessments creativity and schizotypy genetic associations. developmental perspectives Schizotypy: New dimensions will appeal to academics, researchers and postgraduate students in the area of psychotic illnesses, as well as professionals including psychiatrists and clinical psychologists who are concerned with the basis of serious mental disorder. The book will inform readers who are new to the topic and will update and expand the knowledge base of those more experienced in the field.

The central theme of this book presents a challenging and controversial new view of psychosis--that the features of psychotic disorders such as schizophrenia actually lie on a continuum with, and form part of, normal behavior and experience. The dispositional or "schizotypal" traits associated with psychotic disorders, while increasing one's chances for mental illness, also lead to positive outcomes such as enhanced creativity or spiritual experience. Each aspect of this theme is supported by extensive experimental and clinical evidence, questioning the conventional medical wisdom that treats psychotic illness in the narrow context of neurological disease. The result is an authoritative and provocative overview of an important topic in psychological research and clinical practice.

This book is devoted to schizotypal personality. It provides a comprehensive overview of our knowledge from some of the world's leading researchers in the field, and includes reviews of genetics, neurodevelopment, assessment, psychophysiology, neuropsychology and brain imaging. Central themes are the exploration of categorical and dimensional approaches to the understanding of schizotypal disorder and its relationship to schizophrenia. Valuable introductory and concluding chapters set in context the sometimes divergent opinions and findings presented by the book's contributors and there are reviews of methodological issues and assessment schedules for the benefit of researchers in the field. In setting out to answer, from phenomenological, psychological and neurobiological perspectives, the fundamental question 'What is schizotypal disorder?' and to develop coherent etiological models, this book will serve as an authoritative resource for clinicians and researchers interested in this major personality disorder.

The definitive treatment textbook in psychiatry, this fifth edition of Gabbard's Treatments of Psychiatric Disorders has been thoroughly restructured to reflect the new DSM-5® categories, preserving its value as a state-of-the-art resource and increasing its utility in the field. The editors have produced a volume that is both comprehensive and concise, meeting the needs of clinicians who prefer a single, user-friendly volume. In the service of brevity, the book focuses on treatment over diagnostic considerations, and addresses both empirically-validated treatments and accumulated clinical wisdom where research is lacking. Noteworthy features include the following: Content is organized according to DSM-5® categories to make for rapid retrieval of relevant treatment information for the busy clinician. Outcome studies and expert opinion are presented in an accessible way to help the clinician know what treatment to use for which disorder, and how to tailor the treatment to the patient. Content is restricted to the major psychiatric conditions seen in clinical practice while leaving out less common conditions and those that have limited outcome research related to the disorder, resulting in a more streamlined and affordable text. Chapters are meticulously referenced and include dozens of tables, figures, and other illustrative features that enhance comprehension and recall. An authoritative resource for psychiatrists, psychologists, and psychiatric nurses, and an outstanding reference for students in the mental health professions, Gabbard's Treatments of Psychiatric Disorders, Fifth Edition, will prove indispensable to clinicians seeking to provide excellent care while transitioning to a DSM-5® world.

The Complex Connection between Cannabis and Schizophrenia provides an in-depth overview of the current state of research into the role that cannabis plays in schizophrenia, covering both the pathophysiological and the pharmacological implications. It addresses the epidemiology of cannabis use and the risks associated with its use, the biological aspects of the drug, its effects on the brain and the pharmacological possibilities of using cannabidiol to treat schizophrenia. It is the only book on the market devoted exclusively to examining the links between this very commonly used (and misused) drug and a specific set of devastating psychiatric illnesses, providing a comprehensive guide to our current understandings of this relationship. Marijuana is the most commonly used illicit drug globally, and is becoming increasingly decriminalized and even legalized worldwide. Among the numerous mental-health concerns related to the drug, there is mounting evidence of an intricate link between cannabis use and schizophrenia and related psychotic disorders. At the same time, there is promising evidence to suggest that cannabidiol, one of the many compounds found in cannabis that activates the brain's cannabinoid receptors, could prove to be an effective antipsychotic to treat schizophrenia. - Synthesizes existing knowledge about the confusing, but crucial, relationship between cannabis use and schizophrenia symptoms - Provides a comprehensive overview of the neurobiological mechanisms of cannabis use and its effects on the brain, including an exploration of the endocannabinoid system - Examines the promising evidence suggesting cannabidiol as an effective antipsychotic treatment for schizophrenia - Aids readers studying the neurobiological underpinning of cannabis addiction and psychosis in determining directions for their own future research

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.

Social Cognition in Psychosis combines current research on phenotypes, neurobiology, and existing evidence on the assessment and treatment of various forms of psychoses. The book presents various treatment options, including assessment approaches, tools and training methods that aid in the rehabilitation of patients with psychotic disorders. Social cognition is a set of psychological processes related to understanding, recognizing, processing and appropriately using social stimuli in one's environment. Individuals with psychotic disorders consistently exhibit impairments in social cognition. As a result, social cognition has been an important target for intervention, with recent efforts trying to enhance early recovery among individuals with psychotic disorders.