This volume reports in four sections the most recent developments of treatments in anxiety disorders. The current well-elaborated, though partly controversial, behavioral, cognitive, psychophysiological, and biological concepts for treatment of anxiety disorders are carefully evaluated (Part I). Part II discusses results of the short- and long-term effectiveness of the respective treatment methods, their side effects, and failures. Promising new basic-experimental and clinical studies from twenty research centers in Europe, Australia, and the United States shed new light on the relevant...