ABSTRACT
Everyone knows what anxiety is, which should make the subject an especially rich one for interdisciplinary study. However, interesting and crucially important aspects of a psychological subject-aspects that bear directly on one's ability to conduct effective and sophisticated psychotherapy-may also be the most difficult to bring an intelligible interface with neurobiological and psychopharmacological understandings. The latter disciplines require a quantitative empirical approach, relying on methodological reduction and precise definition. Problems that can be studied with measuring devices and psychological states that can be most precisely defined and described by the people who are the subjects of study yield the most accurate and replicable empirical knowledge.
