A Brief GAmeplay Intervention for NHS ICU Staff Affected by COVID-19 Trauma (GAINS Study)

Inclusion criteria: * Aged 18 or above. * Able to read, write and speak in English. * Worked in a clinical role in an NHS Intensive Care Unit or equivalent during the COVID-19 pandemic (e.g. as a member of ICU staff or deployed to work in the ICU during the pandemic) * Experienced at least one traumatic event related to their work during the COVID-19 pandemic, meeting criterion A of the Diagnostic and Statistical Manual of Mental Disorders, 5th edition (DSM-5) criteria for Post-Traumatic Stress Disorder (PTSD): "exposure to actual or threatened death, serious injury, or sexual violence" by "directly experiencing the traumatic event(s)" or "witnessing, in person, the event(s) as it occurred to others" * Experience intrusive memories of the traumatic event(s). * Experienced at least three intrusive memories in the week prior to screening. * Have internet access. * Willing and able to provide informed consent and complete study procedures (including briefly listing their intrusive memories (without going into any detail), and playing the brief digital imagery-competing task with particular mental rotation instructions, and completing an online intrusive memory diary). * Willing and able to be contacted by the research team during the study period. Exclusion criteria: • Have fewer than three intrusive memories during the run-in week. We will not exclude those undergoing other treatment for PTSD or its symptoms, so the study is as inclusive as possible to meet the challenges I…