Misophonia disorder is a neurological disorder in which people show emotional, physical or aggressive reactions upon hearing a series of sounds, which ultimately leads to disruption in the work environment and relationships of these people. Therefore, the aim of this study was to investigate the effectiveness of cathodal tDCS and cognitive-behavioral therapy in reducing the symptoms of misophonia disorder. The current research is practical based on the purpose and based on the method of data collection, it was a semi-experimental type of pre-test and post-test with a control group. People with misophonia were selected and randomly assigned to five groups of 10 people, which included four experimental groups and one control group. The interventions included 9 sessions (tDCS) for 15 minutes with an intensity of 1 milliampere and 9 sessions of group cognitive behavioral therapy (120 minutes) and Wu\\\\\\\\\\\\\\\'s noise aversion questionnaire was used. For data analysis, multivariate analysis of covariance was performed with SPSS-25 software. The findings showed that each of the tdcs and cognitive-behavioral treatments individually and also in combination reduce the symptoms of misophonia disorder. It seems that tdcs along with cognitive behavioral therapy has more effectiveness, which reminds the need to pay more attention to this combined treatment method, also, cognitive-behavioral therapy and electrical stimulation each have significant results and effects in They have a reduction in the symptoms of misophonia disorder.

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