Imagery Rescripting for Obsessive Compulsive Disorder: A single case experimental design in 12 cases

• A single case experimental design for investigating imagery Rescripting.
• Minimal change was seen following the control intervention.
• Clinically significant change occurred in 7 out of 12 cases with OCD after 3 months.
• Imagery Rescripting is a promising therapeutic technique for OCD with aversive images.

Background and objectivesSome individuals with Obsessive Compulsive Disorder (OCD) may experience recurrent intrusive distressing images, which may be emotionally linked to past aversive memories. Our aim was to investigate whether Imagery Rescripting was an effective intervention for such individuals with OCD.MethodTwelve cases who experienced intrusive distressing images are presented in a A1BA2CA3 single case experimental design. After a baseline of symptom monitoring (A1), participants had a control intervention of talking about the memory related image (B), followed by symptom monitoring (A2), a single session of Imagery Rescripting (C) and further monitoring for up to 3 months (A3).ResultsMinimal change was seen following the control intervention. However, at 3 months following ImRs, there was a drop in the Yale-Brown Obsessive Compulsive Scale, with a decrease from a mean of 24.1 to 10.7. Reliable improvement was achieved in 9 out of the 12 cases and clinically significant change in 7 out of 12 at 3-month follow up. The limitations are that all cases were selected on the basis that they had an aversive memory linked to their imagery.ConclusionsImagery Rescripting is a promising therapeutic technique for OCD as an adjunct to CBT where intrusive images are linked to aversive memories.