AEDP Institute

Research Team

Jennifer Edlin, MFT, Co-Chair of AEDP Research Committee, Faculty Liaison

From the moment Jennifer Edlin, AEDP's Research Committee Co-Chair & Faculty Liaison attended her first Immersion Course, she was taken by AEDP and the permission to be authentic and to use both the left and right brain in service of clients’ transformation. On the Research Committee, Jennifer serves as a liaison between faculty and researchers. She brings to her work a passion for showing what we know about AEDP through research as well as a background in law, experience in private practice psychotherapy, and years spent building consensus to effect change within companies.

Jennifer has also helped to spearhead the launch of the Berkeley Initiative for Mindfulness in Law at UC Berkeley Law. She received her undergraduate degree from Princeton University, a JD/MBA degree from New York University and an MA in Counseling Psychology from the California Institute of Integral Studies.

Jennifer is faculty member of the AEDP Institute, seeing clients in private practice in Oakland and San Francisco. In addition to her role on the AEDP Research Committee, Jenn is the head of volunteers and registration for AEDP West and has assisted at several AEDP Essential Skills and Immersion Courses, helping to facilitate small experiential-groups for therapists in the Bay Area, New York and Boston. She endeavors to bring a natural warmth, ease and authenticity to her work with clients as well as to her work in the AEDP community.

Diana Fosha, PhD

Diana Fosha, PhD, the  developer of AEDP (Accelerated Experiential Dynamic Psychotherapy), is also Co-Director, with Shigeru Iwakabe, PhD, and Jennifer Edlin, MFT, of AEDP research.  For the last 20 years, Diana has been active in promoting a scientific basis for AEDP's healing-oriented experiential therapy. AEDP’s transformational theory, a basis for putting neuroplasticity into clinical action, is similarly receiving increasing recognition. Drawing on affective neuroscience, attachment theory, mother-infant developmental research, and research documenting the undreamed-of plasticity in the adult brain, AEDP has developed an experiential clinical practice which reflects the integration of science, research and practice in psychotherapy.

Diana has always been a phenomenological researcher, meticulously examining the process of therapy by repeatedly watching and tracking micro change processes. This is a qualitative phenomenological research of its own kind, which has resulted in an extensive and original phenomenology of the transformational process, and the close and detailed description of  transformational affects, e.g., the healing affects,  the tremulous affects, and core state. These concepts are closely aligned to and grounded in  observational data and they turn out to be universal: their experiential validity is evident in that the subjective experience of  therapists from many cultures across the globe -- Brazil, China, Israel, Japan, Sweden, to name just a few-- resonate with these phenomena.

Her deep commitment to research has extended to include more formal empirical research methods in recent years. Diana Fosha's collaboration with Shigeru Iwakabe and Nuno Conceicao resulted in a series of conference presentations that tapped into features unique to AEDP, such as metatherapeutic processing, clients' subjective experience of change,  the phenomenology of AEDP therapists’ professional growth and wellbeing, AEDP supervision, etc. Manuscripts of these conference papers are now being prepared and readied for publications.

From these research activities, in collaboration with her colleagues, Diana has been evolving AEDP's basic research stance: Like AEDP itself,  research into AEDP processes and outcome is a collaborative creative endeavour amongst researchers, clinicians, and patients, based on mutual respect and appreciation, highest rigour and precision, open investigative attitude, and finally, the shared and generative joy of discovery.

In 2013, she invited Shigeru Iwakabe, PhD and Jennifer Edlin, MFT to join her in the endeavour of conducting formal research into AEDP and the research committee was formed. Now, the AEDP research program is set and launched.


Shigeru Iwakabe, PhD, Director of AEDP Research, Co-Chair of AEDP Research Committee

Shigeru IwakabeShigeru Iwakabe, Ph.D., is an associate professor of Developmental Clinical Psychology at Ochanomizu University in Tokyo, Japan. He received his PhD at McGill University in Montreal, Canada in 2001. Shigeru conducts psychotherapy research on client emotional processes from an integrative perspective with a particular interest in the transformational phenomena in AEDP.

Shigeru is a natural fit with AEDP both as a researcher and a clinician.  Since becoming more deeply involved with AEDP in 2011, Shigeru has undertaken several research projects studying the affective emotional processes in AEDP with his colleague, Nuno Conceicao from Portugal. His research interests include: training and professional development in psychotherapy, case study research methods, psychotherapy integration, and cultural and social issues related to the practice of psychotherapy. His many publications include:

  • Iwakabe, S. & Conceicao, N. (in press) Metatherapeutic processing as a change-based therapeutic immediacy task: Building a initial process model using a modified task-analytic research strategy. Journal of Psychotherapy Integration.
  • Iwakabe, S., Fukushima, T., & Ito, E. (2013). Introduction to clinical psychology: Traversing various approaches. [in Japanese] Tokyo, Japan: Yuhikaku.
  • Iwakabe, S. (2010). The process of qualitative research in clinical psychology. [in Japanese] Tokyo, Japan: Iwasaki Academic Publishing.
  • Iwakabe, S. (2009). Research methods in psychotherapy process research. [in Japanese]Tokyo, Japan: Shinyo-sha.
  • Iwakabe, S. (2008). Clinical explorations of therapeutic failures: How therapists face, work through, and frow from their mistakes. [in Japanese] Tokyo, Japan: Kongo Publishing.

Shigeru also practices in the university clinic and is interested in cultural issues associated with practicing AEDP in Japan. He has completed Level 2 AEDP training.