This volume introduces the subject of ambulatory assessment and monitoring - a new methodology for psychophysiological monitoring. This new methodology is introduced through a series of research reports and their findings, which examine basic issues and strategies. The use of ambulatory techniques is then illustrated with examples of monitoring and assessment, both in the workplace and with patients. The practical knowledge in this volume will allow the reader to learn how ambulatory monitoring assessment can be applied in research and to obtain results with a greater validation than previously available. Details of the required hardware and software is also included.