Diana Fosha, Ph.D., the director of the AEDP Institute, is the developer of AEDP, a healing-based, transformation-oriented model of psychotherapy. She is the author of The Transforming Power of Affect: A Model for Accelerated Change (Basic Books, 2000), and of numerous articles and chapters on transformational processes in experiential psychotherapy and trauma treatment. She is the editor, along with Dan Siegel and Marion Solomon, of The Healing Power of Emotion: Affective Neuroscience, Development, and Clinical Practice (Norton, 2009) part of Norton's Interpersonal Neurobiology Series. A DVD of her AEDP work with a patient has been released by the American Psychological Association, as part of their Systems of Psychotherapy Video Series (APA, 2006).
Throughout her career, she has been interested in exploring different aspects of the change process. Her work on transformational studies has focused on integrating recent developments in attachment theory, affective neuroscience, emotion theory and developmentally-based understandings of the dyadic regulation of affect into clinical work with patients. Recently, Diana Fosha introduced the construct of transformance, key to transformational theory, and has been exploring the role of positive affective experiences as wired-in somatic markers of precisely the kind of transformational processes that are involved in healing psychic suffering and in the fostering of flourishing and well-being.