Ellert R. S. NijenhuisEllert R. S. Nijenhuis

PhD. A Dutch psychologist, psychotherapist, and researcher. He has engaged in the diagnosis and treatment of severely traumatized patients for more than three decades, and teaches and writes extensively on the themes of trauma-related dissociation and dissociative disorders.

He is a clinical and research consultant at Clienia Littenheid, Switzerland. His publications include many clinical and research articles and chapters, as well as the book Somatoform Dissociation (Norton, New York).

With Onno van der Hart and Kathy Steele he co-authored the book The Haunted Self: Structural Dissociation and the Treatment of Chronic Traumatization (Norton, New York). The first two volumes of the trilogy The Trinity of Trauma: Ignorance, Fragility, and Control (Vandenhoeck & Ruprecht, Göttingen) appeared in 2015. The third volume, Enactive Trauma Treatment will appear in November 2016.

The International Society for the Study of Trauma and Dissociation granted him several awards, including the Lifetime Achievement Award and The Pierre Janet Writing Award for the first two volumes of The Trinity of Trauma. 

JimvanOsJim van Os

A professor and the Chairman of the Department of Psychiatry and Psychology at Maastricht University Medical Centre, The Netherlands, and Visiting Professor of Psychiatric Epidemiology at the Institute of Psychiatry, London, UK. He is Director of Psychiatric Services at Maastricht University Medical Centre and runs a service for treatment-resistant depression and first episode psychosis.

Jim van Os is coordinator of a €12M EU FP7 IP project on gene-environment interactions in schizophrenia, and is also active in clinical gene-environment interaction research in depression and bipolar disorder. He appears on the 2014/2015 Thomson-Reuter Web of Science list of the world’s ‘most influential scientific minds’ of our time.

JaninaFisherJanina Fisher

PhD. A licensed clinical psychologist and assistant educational director of the Sensorimotor Psychotherapy® Institute. An instructor since 1996 at the Trauma Center (a treatment/research center founded by Bessel van der Kolk), she is also past president of the N.E. Society for the Treatment of Trauma and Dissociation, an EMDR Consultant, former Instructor, Harvard Medical School, and a consultant to the Connecticut and Massachusetts Departments of Mental Health on trauma-informed care.

Dr. Fisher is the author of a number of articles on trauma treatment and lectures nationally and internationally on the integration of neuroscience research into clinical practice.

JohnReadJohn Read

Is on the Executive Committee of ISPS and is the Editor of the ISPS journal Psychosis. After 20 years as a Clinical Psychologist and manager of mental health services in the UK and the USA, John trained clinical psychologists and conducted research at the Universities of Auckland, New Zealand, and Liverpool, England. He is now a Professor at Swinburne University of Technology.

He has published over 120 papers, primarily on the relationship between adversity and psychosis. He also researches the effects of bio-genetic causal explanations on prejudice, and the pharmaceutical industry. His books include: READ,J., DILLON,J. (2013) Models of Madness.

MonicaAasMonica Aas

A researcher at the NORMENT, KG Jebsen Center for Psychosis Research in Oslo Norway. She completed her PhD on stress and cognition in first-episode psychosis at Kings College London in 2009.

She has published several first author papers mainly on the role of stress and childhood trauma in severe mental illness, and has received several prices for young researchers. She is also a member of the Young Academy of Norway founded in September 2015, an organization of talented, young researchers working with broader issues such as policy development and innovative research dissemination, and a member of the ECNP Traumatic Stress Network.

Renée Potgieter Marks

Renée Marks is working as Consultant Therapist and clinical lead at Integrate Families in the North of England, a national centre for children with complex trauma and dissociation. She is a national and international trainer on the topic of attachement, emotional regulation, complex Trauma and Dissociation in children and adolescents. She is a member of the Child and Adolescents Commettee of the ISSTD. Renée is the chair of the Child and Adolescent Committee of the European Society on Trauma and Dissociation (ESTD).

JeanFrazierJean Frazier

Graduated from Dartmouth Medical School and is board certified in Psychiatry, and Child and Adolescent Psychiatry. In addition to her role as Executive Director of the Eunice Kennedy Shriver Center, she is also Professor of Psychiatry and Pediatrics at the University of Massachusetts Medical School and Vice Chair and Director of the Division of Child and Adolescent Psychiatry.

As Co-Director of the Child and Adolescent Neurodevelopment Initiative (CANDI), Dr. Frazier directs a broad research program that addresses a variety of scientific problems relevant to advancing the understanding, diagnosis and treatment of individuals with neurodevelopmental disorders such as early onset bipolar disorder, schizophrenia and autism. Her clinical and research interests include autism spectrum disorders, early onset schizophrenia and bipolar disorder, neuroimaging and child psychopharmacology.

DavidvandenBergDavid van der Berg

Clinical psychologist at Parnassia Psychiatric Institute, The Haag, The Netherlands, specialized in CBT for psychosis, PTSD, complex anxiety disorders and Ultra High Risk for psychosis.

Conducting research on EMDR and Prolonged Exposure for patients with psychotic disorders and chronic PTSD. He leads projects with industrial design engineers, philosophers and experts by experience to develop smartphone apps for voice hearers, and projects aimed at redesigning the Dutch mental healthcare system.


Conference language in day 3 will be Norwegian, promoting national experts, focusing on clinical challenges across the fields of psychosis and dissociation.