At Delphi, we pride ourselves on working with the world’s most experienced experts in the field of complex trauma, dissociative disorders, PTSD and related mental health issues. Please click on the links below to learn more about our presenters and to see the range of upcoming events and On-Demand webinars they feature in.

Naomi Halpern

Naomi trained as a social worker in the UK. Early in her career she worked with children in short stay emergency care, homeless youth, and convicted offenders in government and NGO’s, providing advocacy, psychosocial education, recreational opportunities, skills training, supervision and counselling.

Dr John Arden

John Arden, PhD, Author of 15 books including: Brain2Brain, The Brain Bible, Rewire Your Brain, and Brain-Based Therapy with Adults.  His new book is entitled Mind-Brain-Gene: Toward the Integration of Psychotherapy. 

Dr Ellert Nijenhuis

Ellert Nijenhuis, PhD, is a psychologist and psychotherapist. He has diagnosed, treated and scientifically studied severely traumatized patients for over 40 years.

Wendy Lemke

Wendy is a licensed psychologist with over thirty years of clinical experience.  She is a sought after presenter for her engaging style and expertise in the fields of clinical hypnosis, ego state therapy, and trauma related disorders. 

David Calof

David Calof has practiced psychotherapy, family therapy and hypnotherapy in his native Seattle for 40 years.  A highly regarded clinician, Mr. Calof has lectured and consulted frequently at educational institutions, professional associations, hospitals, mental health centers, and social service agencies

Dr Laurie-Anne Pearlman

Laurie Anne Pearlman, PhD, is a clinical psychologist and independent trauma consultant based in western Massachusetts. She is a Fellow of the Trauma Division of the American Psychological Association (APA) and of the Society for the Psychological Study of Social Issues.

Professor Julian Ford

Julian D. Ford, Ph.D., is a board certified clinical psychologist and tenured Professor at the University of Connecticut School of Medicine and School of Law where he is the Principal Investigator and Director of two Treatment and Services Adaptation Centers in the National Child Traumatic Stress Network

Dr Eli Kotler

Eli Kotler, MD, is a consultant psychiatrist, holds an academic position at Monash University through the Alfred Psychiatry Research Centre, and is the medical director of Malvern Private Hospital, the first addiction hospital in Australia.

Professor Emerit Jennifer Freyd

Jennifer  Freyd, PhD is the Founder and President of the Center for Institutional Courage. She is also Professor Emerit of Psychology at the University of Oregon, and Adjunct Professor of Psychiatry and Behavioral Sciences in the School of Medicine, Faculty Fellow at the Clayman Institute for Gender Research, and Affiliated Faculty, Women's Leadership Lab, Stanford University.

Dr Colin A. Ross

Colin A. Ross, M.D., completed medical school at the University of Alberta and his psychiatry training at the University of Manitoba in Canada. He is a Past President of the International Society for the Study of Trauma and Dissociation, and is the author of over 230 papers and 34 books.

Professor Emerit Eli Somer

Eli Somer PhD, a clinical psychologist, is also full clinical professor emeritus of psychology at the University of Haifa School of Social Work. He earned his Bachelor’s degree in psychology, sociology and anthropology and his Master’s degree in clinical psychology from the University of Haifa (1975, 1980). His doctoral degree in Counselling Psychology (University of Florida, 1985).

Dr Kathy Steele

Kathy Steele, MN, CS, has been in private practice in Atlanta, Georgia for over three decades, specializing in the treatment of complex trauma, dissociation, attachment difficulties, and the challenges of complicated therapies.

Professor Bessel van der Kolk

Bessel van der Kolk, MD, spends his career studying how children and adults adapt to traumatic experiences, and has translated emerging findings from neuroscience and attachment research to develop and study a range of treatments for traumatic stress in children and adults.

Dr Christine A. Courtois

Christine A. Courtois, PhD, ABPP, is a board-certified counselling psychologist, retired from clinical practice in Washington, DC, is now a licensed psychologist, author and consultant/trainer on trauma psychology and treatment in Bethany Beach, Delaware.

Professor Emerit Ervin Staub

Ervin Staub, PhD, has been president of the International Society of Political Psychology as well as the Society for the Study of Peace, Conflict, and Violence (Division 48 of the American Psychological Association). From the latter organization, he received the "Award for life-long contributions to peace psychology."

Professor Eve Carlson

Eve Carlson, PhD is a Clinical Professor who focuses on fostering mental health after traumatic stress. She is a clinical psychologist and a researcher with the of the National Center for Posttraumatic Stress Disorder’s Dissemination and Training Division.

Dr Eliana Gil

Eliana Gil, Ph.D., RPT-S, ATR is a Registered Play Therapist-Supervisor, Registered Art Therapist and Licensed Marriage and Family Therapist best known for her ground-breaking clinical work and research with children, teens and families impacted by trauma and abuse.

Christine Forner

Christine Forner, BA, BSW, MSW, RSW, has over thirty years’ experience working with individuals with Trauma, Post Traumatic Stress Disorders, Traumatic Dissociation, Developmental Trauma and Dissociative Disorders.

Dr Frank Anderson

Frank Anderson, MD, completed his residency and was a clinical instructor in psychiatry at Harvard Medical School. He is both a psychiatrist and psychotherapist. He specializes in the treatment of trauma and dissociation and is passionate about teaching brain-based psychotherapy and integrating current neuroscience knowledge with the IFS model of therapy.

Dr Janina Fisher

Janina Fisher, Ph.D.  is a licensed clinical psychologist in private practice; Assistant Educational Director of the Sensorimotor Psychotherapy Institute; an EMDRIA Approved Consultant and Credit Provider; former president of the New England Society for the Treatment of Trauma and Dissociation; and a former instructor, Harvard Medical School. 

Professor Warwick Middleton

Professor Warwick Middleton MB BS, FRANZCP, MD, has considerable ongoing involvement with research, writing, teaching (including workshops and seminar presentations), supervision, conference convening and the chairing of Medical Assessment Tribunals.

Dr Susan Hart

Susan Hart, PhD, is a Danish psychologist, specialist and supervisor in psychotherapy and child psychology. With a background in child psychiatry, family and adult therapy, Susan is in private practice. She is the originator of NeuroAffective development psychology, an understanding based on modern brain research that she began to develop three decades ago.

Dr Peter Levine

Peter A Levine, Ph.D., is the developer of Somatic Experiencing®, a naturalistic and neurobiological approach to healing trauma; Founder of the Somatic Experiencing® Trauma Institute/Foundation for Human Enrichment; Founder and President of Ergos Institute of Somatic Education.

Professor Emerit John Briere

John Briere, Ph.D., is a Professor Emeritus of Psychiatry and the Behavioural Sciences at the University of Southern California Keck School of Medicine and the USC Adolescent Trauma Training Center of the National Child Traumatic Stress Network. 

Professor Bethany Brand

Bethany Brand, Ph.D. has over 25 years of clinical experience, with expertise in treating and assessing trauma. She has been honoured with the Martha E. Mitten Endowed Professorship as well as teaching, research and clinical awards including the Cornelia B. Wilbur Award, the Presidential Award, the Pierre Janet Award, the Morton Prince Award, and Psychology Teacher of the Year in Maryland.

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