Bringing together clinicians and researchers from around the world to advocate for the field of traumatic stress.

Healing Trauma Together

The International Society for Traumatic Stress Studies is dedicated to sharing information about the effects of trauma and the discovery and dissemination of knowledge about policy, program and service initiatives that seek to reduce traumatic stressors and their immediate and long-term consequences. ISTSS is an international interdisciplinary professional organization that promotes advancement and exchange of knowledge about traumatic stress.

Trauma Blog

PTSD symptoms or number of life stressors: which is worse for cognitive performance?
Posted on 07/09/2022 by Prieto, Moody, Valerio, & Hayes
Prior work has demonstrated that chronic stress is associated with cognitive dysfunction in the context of aging; However, has not sufficiently disentangled the role of stress exposures compared with posttraumatic stress disorder (PTSD) symptom severity on cognitive functioning. 
Applying Behavioral Economics to Our Understanding of PTSD
Posted on 07/01/2022 by Olin, McDevitt-Murphy, Murphy, Zakarian, Roache, Young-McCaughan, Litz, Keane, & Peterson
As humans, we tend to seek and prefer simple explanations for our own behavior. Human behavior, however, rarely fits simple, linear patterns. If it did, many of us in psychological science would be out of a job. Behavioral economics is a metatheory that combines operant learning theory with microeconomics, and it is particularly helpful for theorizing about and explaining patterns of behavior that seem counterintuitive or complex. 
How does cannabis use relate to psychiatric problems, everyday functioning, and treatment engagement in U.S. military veterans with PTSD symptoms?
Posted on 06/17/2022 by Melanie L. Hill, Ph.D., Sonya B. Norman, Ph.D., & Robert H. Pietrzak, Ph.D., M.P.H.
Despite the rise in cannabis products among adults with PTSD, the impact of cannabis use on symptoms is poorly understood, and even less is known about how cannabis use relates to other aspects of distress and functioning for individuals with PTSD. These are important considerations given that individuals with PTSD symptoms often also experience depression, anxiety, and suicidal ideation.