for people ages 18-65 (full criteria)
study started
estimated completion:
Aoife O'Donovan



The investigators have developed a mobile app called Resolving Psychological Stress (REPS) to help alleviate symptoms of PTSD. The app will administer threat-related attention bias modification to individuals who score high on a PTSD checklist. This study will be administered remotely to individuals in the United States. The aims of the study are to explore both the feasibility and acceptability of the app with it's users, as well as, explore the efficacy of the app at alleviating PTSD severity.

Official Title

Remote RePS: An Entirely Remote Study of an Attention Bias Modification Training "App" for Posttraumatic Stress Disorder


Posttraumatic stress disorder (PTSD) is a highly disabling disorder that affects approximately 30 million people in the United States. New low-cost and accessible treatments for PTSD are desperately needed. Threat-related attention biases represent an important potential treatment target for PTSD. Such attention biases predict risk for PTSD following trauma exposure, and are thought to maintain symptoms of PTSD and other anxiety disorders. Research indicates that specific forms of computerized attention bias modification (ABM) are effective in reducing attention bias for threat as well as anxiety in patients with diverse anxiety disorders. The investigators have developed a mobile "app" called RePS (Resolving Psychological Stress) to administer threat-related ABM to patients with PTSD and have tested it in a laboratory-based pilot study of 19 people with PTSD. Preliminary data indicate that the app is highly acceptable to patients and that use of the app reduces attention bias for threat and PTSD symptom severity. The study aims are to examine the feasibility, acceptability and usability of remotely administered app-based ABM; and determine the efficacy of remote app-based ABM in reducing attention bias and PTSD severity.


Post Traumatic Stress Disorder PTSD Attention bias modification Remote app-based study Digital Health Stress Disorders, Traumatic Stress Disorders, Post-Traumatic Personalized Attention Bias Training Neutral Attention Training Condition Non-Personalized Attention Bias Training


You can join if…

Open to people ages 18-65

  • Must own an iOS device compatible with the app (i.e. iPhones or iPod Touches)
  • Must score at or above 37 on PCL, which indicates clinically significant PTSD symptoms.

You CAN'T join if...


not yet accepting patients
Start Date
Completion Date
University of California, San Francisco
Lead Scientist
Aoife O'Donovan
Study Type
Last Updated