First published in 1991. The impetus for this book and the conference upon which it was based stemmed from the authors' observation that the interrelated phenomena of attention and information processing were the focus of intensive theoretical analysis and empirical research in many different scientific disciplines. The goal of the conference upon which this volume is based was to bring together a distinguished group of investigators from different fields who had rarely (or never) interacted. The specific issues addressed in the present volume concern the changes that occur in attention and information processing during development, the role of selective attention and pre-attentive mechanisms in information processing, the allocation of processing resources, the physiological correlates of attention, and the role of attention-like processes in learning and memory in animals. The participants were from all over the world and represented the areas of psychophysiology, human infancy, developmental psychobiology, animal learning, autonomic regulation, and psychopathology.