AU - Yaselyani, Mehdi TI - The Effectiveness Of Acceptance And Commitment-Based Therapy On Mood Regulation, Executive Function And Reduction Of Behavioral Symptoms, After Cessation Of Drug Use In Maintenance Therapies PT - JOURNAL ARTICLE TA - intjmi JN - intjmi VO - 10 VI - 4 IP - 4 4099 - http://intjmi.com/article-1-679-en.html 4100 - http://intjmi.com/article-1-679-en.pdf SO - intjmi 4 ABĀ  - Background: The aim of this study was to evaluate the effectiveness of acceptance and commitment-based therapy in mood regulation, executive function and reduction of behavioral symptoms after cessation of drug use in maintenance therapies. Method: The research method was quasi-experimental and the pre-test and post-test design with the control group was used. For this purpose, among the addicts under maintenance treatment, who had referred to the addiction treatment centers of Frieden city after cessation of drug use, 30 people were selected using the available sampling method and were randomly divided into two experimental and control groups. In the pre-test and post-test, the Wisconsin Berg (1948) card classification test, the Stroop test (1935), the Madsley Addiction Profile Test (1998), and the Clark Watson (1988) Positive and Negative Mood Test were performed on the subjects. Then, the acceptance and commitment treatment program was performed for 6 weeks in 6 sessions of 90 minutes, and after the post-test, the data were analyzed using analysis of variance and covariance. Results : The results showed that there was no significant difference between the pre-test and post-test scores of the experimental group compared to the control group. Conclusion: Therefore, according to the obtained results, it can be concluded that treatment based on acceptance and commitment to mood regulation, executive function and reduction of behavioral symptoms after cessation of drug use has not been effective in maintenance therapies. CP - IRAN IN - LG - eng PB - intjmi PG - 132 PT - Research YR - 2021