en روانپزشكي Psychiatry پژوهشي Original Research Article <p dir="ltr" style="text-align: justify"><strong>Objective:</strong> This study aimed to assess deficits of cognitive and emotional aspects of theory of&nbsp;mind in patients with bipolar disorder type 1 within a remission period.<br> <strong>Methods:</strong> In this case- control study, 30 bipolar patients and 30 normal individuals were&nbsp;selected through Purposive sampling method for the purpose of the study. Then, they were&nbsp;matched based on their educational background and age. Finally, all participants were asked&nbsp;to complete the Kessler Psychological Distress Scale (K10), eyes test, Theory of Mind Picture<br> Stories Tasks. Data were analyzed using the independent t-test.<br> <strong>Results: </strong>Results show that there is a significant difference between two groups regarding their&nbsp;scores of cognitive theory of mind (t=4.85, P<0.01). and emotional theory of mind(t=4.54,&nbsp;P<0.01). and their reaction time for cognitive test(t=10.34, P<0.01) and emotional test(t=4.61,&nbsp;P<0.01).<br> <strong>Conclusion: </strong>The results show that bipolar patients type I with remission period have deficit&nbsp;regarding cognitive and emotional theory of mind. And because of this, they are weak in&nbsp;understanding others &rsquo;cognitive mind states like opinions and ambitions, and others&rsquo; emotional&nbsp;mind states like feelings and emotions. In fact, it can be concluded that the deficit in Theory of&nbsp;cognitive and emotional mind in bipolar patients with remission period can be the result of the&nbsp;malfunction of brain regions and cognitive infrastructures like executive performances.</p> Theory of mind, Bipolar disorder, Cognition, Affect 151 156 http://jpcp.uswr.ac.ir/browse.php?a_code=A-10-244-1&slc_lang=en&sid=1 Ebrahim Soltani Azemat esoltany22@yahoo.com No University of Social Welfare and Rehabilitation,Tehran, iran Behrooz Dolatshahi dolatshahee@yahoo.com Yes Department of Clinical Psychology, University of Social Welfare and Rehabilitation Science, Tehran, Iran. Morteza Nori Khajavi Mnkhajavi@yahoo.com No University of Social Welfare and Rehabilitation,Tehran, iran