Richard A. Schmidt, PhD, is professor emeritus in the department of psychology at UCLA. He currently runs his own consulting firm, Human Performance Research, working in the area of human factors and human performance. Known as one of the leaders in research on motor behavior, Dr. Schmidt has more than 35 years' experience in this area and has published widely.The originator of schema theory, Dr. Schmidt founded the Journal of Motor Behavior in 1969 and was editor for 11 years. He authored the first edition of Motor Control and Learning in 1982, followed up with a second edition of the popular text in 1988, and collaborated with Tim Lee for the third edition in 1999 and fourth edition in 2005.Dr. Schmidt received an honorary doctorate from Catholic University of Leuven, Belgium, in recognition of his work. Schmidt is a member of the North American Society for the Psychology of Sport and Physical Activity (of which he was president in 1982), the Human Factors and Ergonomics Society, and the Psychonomic Society. Dr. Schmidt has received the C.H. McCloy Research Lectureship from the American Alliance for Health, Physical Education, Recreation and Dance.His leisure-time activities include sailboat racing, amateur Porsche racing, and skiing.Timothy D. Lee, PhD, is a professor in the department of kinesiology at McMaster University in Hamilton, Ontario, Canada. He has published extensively in motor behavior and psychology journals since 1979. More recently, he has contributed as an editor to Journal of Motor Behavior and Research Quarterly for Exercise and Sportand as an editorial board member for Psychological Review. Since 1984 his research has been supported by grants from the Natural Sciences and Engineering Research Council of Canada.Dr. Lee is a member and past president of the Canadian Society for Psychomotor Learning and Sport Psychology (SCAPPS) and a member of the North American Society for the Psychology of Sport and Physical Activity (NASPSPA), the Psychonomic Society, and the Human Factors and Ergonomics Society. In 1980 Dr. Lee received the inaugural Young Scientist Award from SCAPPS; in 1991-92 he received a Senior Research Fellowship by the Dienst Onderzoekscoordinatie, Catholic University in Leuven, Belgium; and in 2005 he presented a prestigious Senior Scientist Lecture at NASPSPA.In his leisure time, Dr. Lee enjoys playing hockey and golf. He has maintained a lifelong fascination with blues music and would one day love to put years of motor learning study into practice by learning to play blues guitar.