Deborah Lee-Thornby, MA

Deborah Lee-Thornby, MA, is a certified AEDP therapist and an AEDP supervisor in training. She has been a Lead Assistant for countless Immersions, Essential Skills, and Advanced Skills Modules. As a founding member of the Portland Oregon AEDP Steering Committee, she has hosted AEDP faculty lead workshops in Portland and Co-Lead a Portland-based Core Training. She was a copresenter in the Institute-sponsored seminar, “Transformational Synergies in AEDP, Spirituality and Psychedelics” in July, 2022.

Deb is in private practice in Portland. She works with couples and individuals, specializing in relationships and sexuality, and complex trauma. As a certified yoga instructor, she incorporates mindfulness, breath, and movement into her work with patients. Deb has a master’s in Applied Behavioral Science from the Leadership Institute of Seattle. She is an IPI-certified Psychedelic Assisted Therapist and continues exploring the varieties of psychedelic therapies that integrate well with AEDP.  
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Malin Endrédi

Malin Endredi is a certified AEDP Therapist and Supervisor. Her office is in Stockholm, Sweden and nowadays online too. Malin welcomes Swedish and English speaking clients and supervisees. Malin is a member of the AEDP Sweden Program Group and one of two hosts of the AEDP Salon Stockholm/Sweden. She was a copresenter in the institute-sponsored seminar, “Transformational Synergies in AEDP, Spirituality and Psychedelics” in July, 2022.

Malin started her professional life as a clinical psychologist working with distressed parents and their dysregulated babies to help create secure attachment. After 17 years she took a Swedish attachment, relational and emotion focused psychotherapist training. That’s where Malin, through an APA video, first encountered Diana’s ways of working and AEDP and it all clicked.

She became devoted and crossed the Atlantic many times to attend trainings and assisting internationally (more…)

Elizabeth Perkins, LMFT

Elizabeth Perkins, LMFT Liz is in private practice in San Diego, California. She is a Certified AEDP Therapist and Certified AEDP Supervisor. She specializes in Complex PTSD, chronic Depression and Psychedelic integration. Liz thrives on fine-tuning her skills in her own individual supervision and while supervising others. Liz feels that AEDP has been responsible for her most memorable and meaningful breakthrough moments in sessions.

When supervising others, she loves supporting the therapist in finding their AEDP style within the theory. She is also passionate about investigating all paths to transformational healing and has been avidly researching the intersections and parallels of AEDP  & psychedelic-assisted therapy. She is MAPS trained, a member of the AEDP & MDMA Research Committee, and a founding member of the AEDP & Psychedelics Committee. In addition, she has trained in Holotropic breathwork and TRE.

Jessica Slatus, LCSW

Jessica Slatus, LCSW is a Certified AEDP Therapist and Supervisor in Colorado.  She is an integral part of the AEDP Rocky Mountains community and has presented locally on a number of topics within AEDP, including the AEDP therapist stance, working with anxiety and defenses, building receptive affective capacity, and metaprocessing.  More recently, she has focused on writing and teaching about working with eating disorders using AEDP, and has authored two publications on the topic: an article in Transformance, the AEDP journal, and a book chapter co-authored with Natasha Prenn in the book Trauma-Informed Approaches to Eating Disorders.Jessica received her Bachelor of Arts from Vassar College, her Masters in Social Work from New York University, and her post-graduate training in eating disorders at the Center for the Study of Anorexia & Bulimia (CSAB).  Jessica was a participant in the inaugural AEDP Essential Skills course in 2010 and has not looked back since! (more…)

Gabriela Pessoa-Mendes, BA

Gabriela is an AEDP certified clinical Psychologist and Supervisor. She has been dedicated to studying AEDP in Brazil since 2008, but it was through in-person courses in NY – Immersion (2013), ES1 (2016/ 2017) and Advanced Skills (2017/ 2018) – that she became even more delighted with the practice of the model. “Listening to Diana, it became clear to me that I was delighted beyond a model of therapy; it resonated with who I am in life.” Gabi brings an embodied AEDP presence to her work – a sense of safety, openness, curiosity, and genuine care to her clients and supervisees. Her expertise in working with trauma in psychotherapy, or doing supervision, shines through her focus on the bottom-up experience – privileging relational and somatic/emotional work.

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Sonya Parker, LCSW, RYT-200

Sonya Parker, LCSW, RYT-200, is a member of the AEDP Vision Collective and Lead Chair of the Racialized Trauma and Spirituality in AEDP Vision Collective Exploratory Group. Sonya was a copresenter in the institute-sponsored seminar, “Transformational Synergies in AEDP, Spirituality and Psychedelics” in July, 2022.

As a licensed therapist and Registered Yoga Teacher, Sonya uses a holistic approach to therapy grounded in attachment, relational, emotion and somatic-mindfulness modalities. Sonya has provided both individual and couples therapy in her career. She is currently researching constructs to expand the AEDP model to integrate spirituality as part of the transformational AEDP process of healing and mitigation of racialized trauma and oppression experienced by people of African ancestry and BIPOC communities in the United States. Sonya is also a founding member of the AEDP Institute’s Vision Collective working to develop approaches to using AEDP to heal racialized trauma.

H. Jacquie Ye-Perman, PhD 

Jacquie Ye-Perman, Ph.D., is a licensed clinical psychologist, Adjunct Faculty of the AEDP™ Institute, certified AEDP Therapist and Supervisor. She is also a member of the AEDP DBEI (Diversity, Belonging, Equity and Inclusion) Committee and the AEDP International Development Committee.

Jacquie grew up in China. She obtained her master’s in Social and Developmental Psychology at Wilfred Laurier University in Waterloo, Canada and her PhD in counseling psychology at University of Florida, USA. She attended her first AEDP Immersion course in 2013 and started receiving supervision from Dr. Diana Fosha soon after. In 2015 she assisted helming the first Immersion course in Shanghai, China, taught by Dr. Diana Fosha and Dr. Danny Yeung. Over the past eight years she has co-taught Immersion, Essential Skills, Core-training courses, and led several other AEDP training in the Chinese-speaking communities and later in English-speaking communities. She also provides individual and group supervision for trainees internationally. (more…)

Andrew Joseph, EdM, MA, LMHC

Andrew is an AEDP Certified Therapist, Research Associate, Guest Presenter in Immersion 2022 and is a psychotherapist in private practice in New York City. He earned his undergraduate degree in psychology from Trinity Western University in Langley, BC, and an MA and EdM in psychological counseling and mental health counseling from Teachers College, Columbia University in New York. Andrew was recruited by his Marriage and Family Therapy professor at Columbia, Gil Tunnell, to work with Diana Fosha. Diana introduced Andrew to her co-leaders of the AEDP research project, Jenn Edlin and Shigeru Iwakabe, who invited Andrew to join the AEDP research team as a research assistant in 2018. Andrew was promoted to Research Associate in 2021. (more…)

Alana Tappin, CPsych

Alana Tappin, CPsych is a licensed clinical psychologist, and the owner/operator of a private psychology clinic that specializes in psychological support for marginalized and racialized people. Based in Toronto, Ontario, Canada, she conducts psychological assessments, treatment and consultation to children, teens and adults. Dr. Tappin also provides supervision and training to students, pre-licensed and licensed mental health therapists. She has long had an interest in the psychological impact of racism and offers trainings on whiteness, shame and racism, and offers anti-oppression and anti-racism training to community organizations, universities, and private businesses. Dr. Tappin earned her doctorate degree from Long Island University, C.W. Post Campus in 2012, (more…)

Heloise (Lois) Ridley, EdD, MBA, MA, LPC, NCC

Heloise (Lois) Ridley  is a Licensed Professional Counselor in Pennsylvania and a Level 3 AEDP therapist. She earned a doctorate from Wilkes University, where she researched Counselors’ Experiences Utilizing Culturally Attuned, Trauma-Informed Care to Support BIPOC College Students’ Mental Health: A Phenomenological Qualitative Study, which included AEDP and attachment-focused therapists. Lois also holds a Master of Arts in Professional Counseling from Liberty University and an MBA from Pennsylvania State University.

Lois specializes in supporting adults struggling with connection, healthy boundaries, and communication in relationships impacted by early childhood trauma. She also provides strategic and encouraging support for caregivers navigating challenges with their children. Her work emphasizes creating corrective relational experiences that foster healing from attachment trauma.

Lois has presented on topics including Transformational Synergies in AEDP, Spirituality, and Psychedelics (AEDP Institute, 2022), Using AEDP to Access the Spiritual Core of BIPOC Clients and Facilitate Recovery from Racial Trauma (AACC World Conference, 2023), and as a guest presenter in the AEDP Immersion course on cultural considerations in promoting transformative change.

She is a founding member of the AEDP Vision Collective working to develop approaches to using AEDP to heal racialized trauma. Lois has served as an Experiential Assistant in programs such as AEDP with Applications to Racialized and Other Relational Developmental Trauma (University of North Carolina at Chapel Hill, 2023), the AEDP Vision Collective seminar Courageous & Restorative Conversations: Building Cultural Bridges, and in the AEDP Immersion course.

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