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Global Collaboration on Traumatic Stress

Collaborating on topics of global importance
New GC-TS Theme fig with Assessment.png
The Global Collaboration on Traumatic Stress 
brings together researchers and clinicians from around the world who collaborate on topics of global importance.... 

© 2019 by Global Collaboration on Traumatic Stress

Trauma is a global issue

Worldwide trauma is the norm rather than the exception (Schnyder, et al., 2017; Kessler et al., 2017). The great majority of the global burden of disease arising from mental health conditions occurs in low and middle income countries. Furthermore, traumatic experiences, trauma-related symptoms, as well as treatment approaches differ across cultures (Olff & Schnyder, 2021). Finally, trauma does not stop at borders.    

Therefore, we need to join forces and  work together to tackle these significant topics of traumatic stress of global importance.


To identify topics of global importance, facilitate development, and coordinate activities that benefit survivors of trauma or stressful events around the world.  

We create a community of traumatic stress researchers, practitioners, policy makers and trauma survivors and develop collaborations, and ultimately structures, that enable us to optimally respond to tasks that support trauma survivors.

We share the products we create for free, we make the data we collect available, and we enhance dissemination of  evidence based interventions.

Steering committee

Steering committee (click to stop autoplay)

Miranda Olff (Chair)

Prof. Dr. Miranda Olff is leading the Center for Psychological Trauma at the department of Psychiatry at the Amsterdam UMC of the University of Amsterdam. Chair: ‘Neurobiological mechanisms of prevention and treatment in trauma and PTSD’. She is Director of Research & Strategy at the ARQ National Psychotrauma Centre.

She is the past president of both the European Society for Traumatic Stress Studies (ESTSS) and the International Society for Traumatic Stress Studies (ISTSS). She has recently been trained in Corporate Governance. Miranda Olff is Editor-in-Chief of ESTSS’s Open Access journal: the European Journal of Psychotraumatology (EJPT). Her research focuses on the psychological and biological responses to traumatic stress and the effects of (early) interventions (e.g. oxytocin or e-Health) after mass trauma or individual events. In 2019 she received the "Wolter de Loos Award for Distinguished Contribution to Psychotraumatology in Europe."

Miranda Olff.jpg
Societies join forces

Who are the supporting societies?

The “Global Collaboration on Traumatic Stress”  is supported by traumatic stress societies worldwide.

Representatives of the societies worldwide are member of the steering committee.

 Currently, in alphabetical order, these are:

  • Asociación Chilena de Estrés Traumático (ACET)

  • Australasian Society for Traumatic Stress Studies (ASTSS) 

  • Canadian Psychological Association Traumatic Stress Section (CPA TSS)

  • European Society for Traumatic Stress Studies (ESTSS)

  • Deutschsprachige Gesellschaft für Psychotraumatologie (German language Society for Psychotraumatology, DeGPT) 

  • International Society for Traumatic Stress Studies (ISTSS)

  • Japanese Society for Traumatic Stress Studies (JSTSS)

  • Korean Society for Traumatic Stress Studies (KSTSS)

  • Sociedad Argentina de Psicotrauma (SAPsi)

  • South African Society for Traumatic Stress Studies (SA-STSS)

  • Asian Society for Traumatic Stress Studies (Asian STSS - currently inactive)

For more see PartnersOther groups engaged in traumatic stress related issues are welcome.

For its development over the years see Olff, 2014; 2015; Schnyder, 2013; Schnyder & Olff, 2013;  Schnyder et al., 2017.

Steering committee:

  • Chair: Miranda Olff, Amsterdam UMC and ARQ National Psychotrauma Centre, The Netherlands

  • Co-chair: Ulrich Schnyder, University of Zurich, Switzerland

  • For the European Society for Traumatic Stress Studies (ESTSS): Jana (Darejan) Javakhishvili

  • For the Japanese Society for Traumatic Stress Studies (JSTSS): Misari Oe

  • For Asociación Chilena de Estrés Traumático (ACET​): Carolina Salgado

  • For the Canadian Psychological Association-Traumatic Stress Section (CPA-TSS): Rachel Langevin

  • For the Australasian Society for Traumatic Stress Studies (ASTSS): Zachary Steel  

  • For the Argentine Society for Psychotrauma (Sociedad Argentina de Psicotrauma, SAPsi): Juliana Lanza

  • For the Deutschsprachige Gesellschaft für Psychotraumatologie (German-speaking Society for Psychotraumatology, DeGPT): Matthias Knefel

  • For the International Society for Traumatic Stress Studies (ISTSS): Diane Elmore Borbon

  • For the Korean Society for Traumatic Stress Studies (KSTSS): Jinhee Hyun

  • For the (South) African Society for Traumatic Stress Studies in formation: Soraya Seedat

  • Student representative: Krithika PrakashPhD student at Eastern Michigan University

Theme leaders (co-opted to the steering committee)

  • Miranda Olff (Assessment)

  • Anke Witteveen (Forcibly displaced persons)

  • Carolina Salgado (Global prevalence of trauma)

  • Monique Pfaltz (Socio-emotional development)

  • Nancy Kassam-Adams (FAIR data)

  • Tatiana Davidson & Sara Freedman (COVID-19)

  • Jura Augustinavicius & Rachel Williamson (Climate change)

  • Armed conflict (Jana Javakhishvili)

  • Debra Kaysen (Treatments across cultures)

For all individuals involved in Themes and Projects see Projects

Social media (Twitter) editor: Max Loomes

Newsletter editor: Anke Witteveen

For news updates and newsletter click here

Who are we?

Traumatic stress societies join forces

Traumatic stress societies around the world have decided to join forces in order to enhance knowledge about psychotrauma around the world. The traumatic stress societies agreed to work alongside each other on an equal basis.

Theme leaders


  • Kessler, R. C., Aguilar-Gaxiola, S., Alonso, J., Benjet, C., Bromet, E. J., Cardoso, G., . . . Survey, W. W. M. H. (2017). Trauma and PTSD in the WHO World Mental Health Surveys. European Journal of Psychotraumatology, 8(1).

  • Schnyder, U., Schafer, I., Aakvaag, H. F., Ajdukovic, D., Bakker, A., Bisson, J.I., Brewer, D., Cloitre, M., Dyb, G.A., Frewen,P., Lanza, J., Le Brocque, R., Lueger-Schuster, B., Mwiti, G.K., Oe, M., Rosner, R., Schellong, J., Shigemura, J., Wu, K., & Olff, M. (2017). The global collaboration on traumatic stress. European Journal of Psychotraumatology, 8(1) .

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