Efficacy of imagery rescripting in treating mental disorders associated with aversive memories - An updated meta-analysis

Imagery rescripting (ImRs) is frequently applied to treat different psychological complaints. We conducted an updated meta-analysis based on randomised controlled trials on the efficacy of ImRs for mental disorders associated with aversive memories. Medline, PsycInfo, and Web of Science were searched up to May 2023. Seventeen trials were included with a total of 908 participants (417 in the ImRs condition), suffering from posttraumatic stress disorder, anxiety disorders, depression, or eating disorders. Random effect models yielded an overall effect of g = 0.68 (95 % CI 0.18 to 1.18; k = 7) compared to passive controls (mostly waitlist). The effect compared to (prolonged) exposure, cognitive restructuring, and EMDR was non-significant (g = -0.01; 95 % CI -0.18 to 0.15; k = 11). Follow-up assessments indicated a long-term treatment effect. Results suggest that ImRs can effectively treat a variety of psychological disorders and produce similar treatment effects as evidence-based interventions. Limitations include the bounded number of included trials for each mental disorder. The meta-analysis was registered on PROSPERO (CRD42020220696) and received no funding.