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Volunteer for our study into how people experience therapy for PTSD when they lack trauma memories

We are looking for people who have post-traumatic stress disorder (PTSD), but do not recall the trauma's cause.

There are some well-evidenced psychological therapies available to help people recover from PTSD, but they all involve working with or “reprocessing” the trauma memories in some form. We know, however, that some people who have experienced trauma cannot remember what happened to them, but still experience many of the difficult and distressing symptoms of PTSD. There has been no research into how people in this situation experience assessment and therapy.


To be eligible to participate in this study, you must:

  • be aged 18 or over
  • currently have or previously have had symptoms of PTSD
  • be unable to remember the trauma that led to you having PTSD
  • have had assessment and/or therapy for your PTSD symptoms that finished within the last 12 months.

Even if you have only had one assessment or therapy session, we would like to hear about your experiences.

What's involved in the study

Participating in the study will involve an interview lasting approximately one hour, either in person or over the phone. You will also be asked to fill out one questionnaire. You will not be asked to talk about the trauma itself and how much you choose to share is up to you. Please see the video below for more information.

What you'll get for taking part

Unfortunately we are not able to offer material incentives. However any travel costs incurred during participation will be fully reimbursed.


All participant data will be anonymised and handled in accordance with a data management plan approved by the Psychology Ethics Board. This study has received ethical approval1.

We are accepting participants until 14 May 2021.

PTSD Research Project

This study is the first to explore the experiences of people who have had assessment or therapy for PTSD whilst being unable to remember the trauma that caused it.

If you're interested in taking part, we'd love to hear from you

Email to take part

Get in touch

If you have any questions about this research study, please contact the lead researcher.

1The study has been approved by the Psychology Research Ethics Committee (Ethics code: 19-226).