[I figured I'd put this update here: Amusingly, considering that Siegel's work is all about how to make your brain work better, ...well, just look at this mess of a post!]
This is from his "about Dan" page:
Daniel J. Siegel received his medical degree from Harvard University and completed his postgraduate medical education at UCLA with training in pediatrics and child, adolescent and adult psychiatry. He served as a National Institute of Mental Health Research Fellow at UCLA, studying family interactions with an emphasis on how attachment experiences influence emotions, behavior, autobiographical memory and narrative.
Dr. Siegel’s psychotherapy practice includes children, adolescents, adults, couples, and families. He is currently a clinical professor of psychiatry at the UCLA School of Medicine where he is on the faculty of the Center for Culture, Brain, and Development and the Co-Director of the Mindful Awareness Research Center. An award-winning educator, he is a Distinguished Fellow of the American Psychiatric Association and recipient of several other honorary fellowships. He is also the Executive Director of the Mindsight Institute, an educational organization that focuses on how the development of mindsight in individuals, families and communities can be enhanced by examining the interface of human relationships and basic biological processes.
Dr. Siegel has published extensively for the professional audience. He is the co-editor of a handbook of psychiatry and the author of numerous articles, chapters, and the internationally acclaimed text, The Developing Mind: Toward a Neurobiology of Interpersonal Experience (Guilford, 1999). This book introduces the idea of interpersonal neurobiology and has been of interest to and utilized by a number of organizations, including the U.S. Department of Justice, The Vatican’s Pontifical Council for the Family, Microsoft and Google, early intervention programs and a range of clinical and research departments worldwide. He has been invited to lecture for the King of Thailand, Pope John Paul II, and His Holiness the Dalai Lama.