The chapters in this volume are the edited versions of invited addresses to the XXVI International Congress of Psychology held in Montreal in August 1996. As one major goal of the Congress was to promote communication among specializations in scientific psychology, the speakers were asked to survey their research area and present their own work in a way that would be accessible to their colleagues in other areas. Another purpose of the meeting was to bring researchers together from different parts of the world, reflecting their different approaches to the scientific study of mind, brain, and...