The Effectiveness of Transdiagnostic Treatment on Ambiguity Tolerance, Executive Functions (Accuracy and Time) and Memory in Patients with Obsessive-Compulsive Disorder

Given the changes in DSM and the consideration of dimensional variation, instead of category approach, the question arises as to whether transdiagnostic therapy is effective in the treatment of OCD? The purpose of this study was to investigate the effectiveness of transdiagnostic treatment on ambiguity tolerance, executive functions (accuracy and time) and memory in patients with obsessive-compulsive disorder (OCD). 40 patients were selected by purposeful sampling method and randomly assigned to 2 groups of 20 subjects (transdiagnostic treatment group and control group). The tools used in the present study were: Yale Brown Obsessive Compulsory Inventory )Goodman, Price et al. 1989(, McLean ambiguity tolerance scale)McLain 2009), and Letter–Number Sequencing(Wechsler,1987) and Stroop test )Stroop,1935). The results showed that transdiagnostic treatment significantly improved ambiguity tolerance, cognitive emotion regulation, executive functions (accuracy and time) and memory in patients with OCD (p<0/001). transdiagnostic approach in treatment by considering the dimensional approach and targeting of diagnostic structures can be effective in improving the symptoms of OCD.