AEDP has roots in and resonances with many disciplines, amongst them attachment theory, affective neuroscience, body-focused approaches, and transformational studies.
AEDP fosters the emergence of new and healing experiences through the in-depth processing of difficult emotional and relational experiences. Key to this experiential enterprise is the establishment of the therapeutic relationship as secure base, which we seek to do from the get-go.


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.

Dr. Fosha has contributed chapters to Longevity, regeneration, and optimal health: Integrating Eastern and Western perspectives (Annals of the New York Academy of Sciences, 2009); Clinical pearls of wisdom: 21 leading therapists offer their key insights (Norton, 2009); Complex Traumatic Stress Disorders: An Evidence-Based Clinician's Guide, edited by Christine Courtois and Julian Ford (Guilford, 2009); Healing Trauma: Attachment, Mind, Body and Brain, edited by Marion Solomon and Daniel Siegel (Norton, 2003) and to The Comprehensive Handbook of Psychotherapy., Volume 1: Psychodynamic and Object Relations Therapies, edited by J. J. Magnavita (Wiley, 2002).

Diana Fosha is on the faculty of the Department of Psychiatry and Psychology of both NYU and St. Luke's/Roosevelt Medical Centers in NYC. She has done workshops, telecourses, and intensive trainings nationally and internationally. Outside of the US, she has taught and supervised extensively in Brazil, Denmark, and Italy. She teaches, supervises, and is in private practice in her beloved New York City, where she also occasionally leads AEDP Core Training groups.

Many of her papers are available through the AEDP website at

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