First published in 1991. Routledge is an imprint of Taylor & Francis, an informa company.

The positive versus negative distinction of schizophrenic disorders has pro moted ongoing research. Phenomenology, psychopathology, biology, genet ics, pharmacological and nonpharmacological treatment, psychosocial and longitudinal research: all have found a new focus of interest. This volume attempts to provide an unbiased picture of the status of American and Eu ropean knowledge regarding the positive/negative distinction. Researchers from North America and Europe describe the relation of modern concepts of positive and negative symptomatology to the original models of Rey nolds and Jackson. Integrating phenomenological, genetic, and biological factors, the authors depict current methods of assessing positive and nega tive symptomatology, differentiating between primary and secondary symp tomatology, and using pharmacological and nonpharmacological treatment. The stability of positive and negative symptoms over time and evidence for the occurrence of separate positive and negative episodes over a long-term course of schizophrenia are extensively discussed in terms of their implica tions on the positive/negative construct. The relevance of the positive/nega tive dichotomy to child and adolescent schizophrenia is also debated. The main aim of this book is not to advocate a single concept and present only arguments supporting it, but to discuss important controversies. Prob lems concerning a concept cannot be solved by ignoring them. However, unanswered questions may be resolved through discussion, debate, and con structive compromise.

Schizophrenia is one of the most severe psychiatric disorders, carrying with it significant stigma and a number of debilitating symptoms. While material on its "positive" symptoms, such as hallucinations and delusions, is readily available, its "negative" symptoms, which present heterogeneously as deficits across a variety of domains, are not nearly so well-documented and often go undiagnosed with no effective treatment. Given the poor functioning and outcomes which occur as a result of these symptoms, it is imperative they receive greater focus. Part of the Oxford Psychiatry Library (OPL) series, this concise pocketbook provides readers with a comprehensive overview of the definition, evaluation, and treatment of negative symptoms. Written by experts in the field, with key points at the beginning of each chapter for quick reference, this is an invaluable resource for any mental health care professional working with individuals affected by schizophrenia.

An international team of leading researchers and clinicians provides the first comprehensive, epidemiological overview of this multi-faceted and still-perplexing disorder. Controversial issues such as the validity of discrete or dimensional classifications of schizophrenia and the continuum between psychosis and 'normality' are explored in depth. Separate chapters are devoted to topics of particular relevance to schizophrenia such as suicide, violence and substance abuse. Finally, new prospects for treatment and prevention are considered.

The second revised edition of this text will update and present current state of the art clinical approaches to this subject. This book will continue to be the source text of information on drug-induced movement disorders authored and edited by the pioneers in the field. It will be an invaluable addition to the library of any neurologist.

Schizophrenia: The Facts provides a concise and up-to-date account of the underlying causes and symptoms of schizophrenia, as well as current theories about the disorder. The book provides a welcome source of information and advice both for families of schizophrenics and those involved in caring for them.

Provides state-of-the-art information about cognition in schizophrenia with a wide ranging focus on measuring and treating cognitive deficits.

This book reviews the descriptive features of psychotic symptoms in various medical conditions (psychiatric, early psychosis, general medical, neurological and dementia), non-medical settings (individuals without the need for care or at high risk for psychosis) and age groups (children and adolescents, adults, older adults). Similarly, the perspectives of many disciplines are provided (history, psychiatry, psychology, psychopathology, neurology, phenomenological philosophy) so that readers may become familiar with different approaches that are used to define, evaluate and categorize psychosis, at times independently of clinical diagnosis. This book is a resource book for those requiring an understanding of clinical and conceptual issues associated with psychosis, with chapters written by academics and clinicians who are leaders in their respective fields. The book also provides a guide regarding the methods of assessment for psychosis and its symptoms, with 120 rating scales, which are described and evaluated. The Assessment of Psychosis will be particularly useful to the clinical and research community, but also to readers interested in individual differences and human psychopathology.