the effectiveness of acceptance and commitment therapy on distress and psychosomatic symptoms in patients with type d personality and gastrointestinal dysfunction

Background: anxiety disorders and psychological manifestations play a significant role in developing psychosomatic disorders. moreover, personality traits are one of the psychological structures associated with psychosomatic symptoms. objectives: this study aimed at determining the effectiveness of acceptance and commitment therapy on distress and psychosomatic symptoms in patients with type d personality and gastrointestinal dysfunction. methods: the present study was semi-experimental with pre-test, post-test, and follow-up with a control group. the statistical pop- ulation in this study was all patients with functional gastrointestinal disorders (fgid) who were referred to institute of psychology and counseling hamdam hmrah in 2020 and 2021, 24 patients were selected by targeted sampling method (patients with gastrointestinal dysfunction, except gastrointestinal cancer patients, who had a high de-personality score).data were obtained using the type-d scale, rome iii questionnaire, psychological distress scale, and depression, anxiety, and stress scale (dass-21). data analysis was per- formed using repeated measure analysis of variance by spss 22. results: the results showed that acceptance and commitment therapy was effective in reducing distress (p<0.001) and psychosomatic symptoms (p<0.001) in patients with type d personality and gastrointestinal dysfunction. conclusion: it can be concluded that acceptance and commitment therapy effectively improve distress and psychosomatic symptoms of patients with type d personality and gastrointestinal dysfunction as well as psychological problems in patients with gastrointestinal dysfunction.