Holder of the Glenwood and Martha Creech Eminent Scholar Chair in Science at Florida Atlantic University, J. A. Scott Kelso is also a professor of psychology, of the biological sciences, and of the biomedical sciences there. He has devoted the past quarter century to trying to understand how human beings (and human brains)—individually and together—coordinate their behavior. Dr. Kelso is considered one of the originators of coordination dynamics, a theoretical and empirical framework that aims to describe, explain, and predict how patterns of coordination form, persist, and change in living things on several levels. The focus of his current work is on how the brain, by using a subtle blend of integration among, and segregation between, its functioning parts, creates meaningful information that may be stabilized over time and used to direct ongoing activity. Dr. Kelso served as founding director of Florida Atlantic’s Center for Complex Systems and Brain Sciences for two decades. Born in Ireland, he studied at Stranmillis University College in Belfast and was a schoolmaster before coming to Canada and taking a B.S. at the University of Calgary. He earned a Ph.D. in kinesiology and psychology at the University of Wisconsin in 1975. For the next several years, he served as an assistant professor of exercise science, with joint appointments in psychology and speech and hearing science, and as director of the Motor Behavior Laboratory at the University of Iowa. Appointed an associate professor of psychology and bio-behavioral sciences at the University of Connecticut in 1978, he was named a full professor in 1982 and also served for seven years as a senior research scientist at Yale University’s Haskins Laboratories. Dr. Kelso accepted his present position in 1985. A fellow of the American Association for the Advancement of Science, the American Psychological Society, and the American Psychological Association, he formerly served as president of the South Florida Chapter of Sigma Xi and is currently a member of the advisory board of the Plexus Institute. He has an honorary degree from the University of Toulouse and is the recipient of numerous awards, including the MERIT and Senior Scientist awards of the National Institutes of Mental Health, the Distinguished Scientist Award of the North American Society for the Psychology of Sport and Physical Activity, and the Distinguished Alumni Research Achievement Award of the University of Wisconsin. Presently a member of the editorial boards of Neural Networks, Journal of Motor Behavior, Human Movement Science, Motor Control, Chaos and Complexity Letters, and Cognitive Processing, he serves as editor of the Springer- Verlag series Understanding Complex Systems. Dr. Kelso is the author of some three hundred articles published in academic journals and essays in volumes of collected works. He co-edited five books and is the author of three others, Human Motor Behavior: An Introduction (1982), Dynamic Patterns: The Self-Organization of Brain and Behavior (1995 and 1997) and, most recently, (with D. A. Engstrom) The Complementary Nature, which was published by the Massachusetts Institute of Technology Press last year.