This is the latest in a series that focuses on topics of contemporary interest to psychologists, with emphasis given to critical reviews and synthesis of both basic and applied psychophysiological research. The aim of the series has been to provide a forum of reviews and analyses of recent programmatic research in psychophysiology. The series also aims to present any important advances of clinical relevance, remaining more interested in psychophysiological concepts than in specific clinical cases. Using a style that is conceptual rather than solely empirical or technical has enabled the series to provide readily available, up to date, technical reference sources to psychophysiologists, students and interested professionals from related areas of inquiry. This volume is divided into four sections covering a spectrum of topics relevant to psychophysiology: Risk for severe psychopathology: Psychometric screening and psychophysiological assessment addresses how a combination of psychometric and psychophysiological approaches may offer much to psychopathology research, intervention and prevention. Perception of visceral sensations presents a review of recent findings, methodologies and future directions. Advances in gastrointestinal psychophysiology: prolonged ambulatory monitoring from the gastrointestinal track explains how such advances have helped clinicians and researchers to move beyond the confines of the laboratory and hospital settings into natural environments to enhance understanding of how behaviour effects gastrointestinal physiology and pathophysiology. Dynamic factor analysis of psychophysiological signals investigates the use of dynamic factor analysis as the impact of theoretic models in psychophysiology steadily grows.