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Background and Objective: All organisms for managing behaviors require to use of cognitive patterns of the central and peripheral nervous system. This study was done to compare the metacognitive beliefs and tolerance of ambiguity in depressed, anxious and normal people.
Methods: This descriptive-analytic study was done on 120 depressed, anxious and normal people depressed, anxious and normal people in psychiatric clinic of Zare hospital in Sari city north of Iran during 2017. To measure ambiguity in depressed, anxious and normal people the tolerance for ambiguity scale of lane, wells metacognitive scale, Beck anxiety inventory (BDI) and Beck depression inventory (BDI) were used in this study.
Results: Tolerance of ambiguity significantly increased in depressed and anxious groups in comparison with controls (P<0.05). Positive worry beliefs significantly reduced in depressed group in comparison with controls (P<0.05). Negative meta-cognitive beliefs about the thoughts and metacognitive beliefs significantly reduced in depressed group in compared to control group (P<0.05).
Conclusion: This study emphasized the extent of anxiety and depression disorders in relation to in- effective metacognitive problems. These ineffective beliefs can cause a decrease in psychological tolerance.
 

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Background and Objective: There is a corolation between meta-cognitive beliefs and psychological adaptability. The subjects with adaptability beliefs have more soci-psyclogical adaptability. Diabetes has a negative impact on the quality of life. Therefore, this study was done to determine the relationship between meta-cognitive beliefs and adaptability with quality of life in type 2 of diabetic patients.
Methods: This descriptive correlation study was done on 100 type 2 diabetic patients (60 males, 40 females) whom refered to association of diabetes center in Tehran, Iran during 2016. They were selected by network sampling method. Data collection was done by Wales and Cartwright Hatton (2004) Meta-cognitive beliefs, Bell's (1961) adjustment and ware and quality of life (1996) questionnaires.
Results: There was a positive and significant relationship between metacognitive beliefs (r=0.756) with quality of life (P<0.05). In addition, there was a significant relationship between adaptability (r=-0.917) with quality of life (P<0.05). The results of sub-scales of metacognitive beliefs showed that the strongest predictor of adjustment and quality of life is the component of positive beliefs about worry, and then the components beliefs about superstition, punishment and responsibility associated with worry and beliefs about uncontrollability of worrying and about the dangers of failing to control worrying, respectively, had a good predictor role.the severity of diabetes significantly reduced the qulity of life (P<0.05).
Conclusion: Metacognitive beliefs and compatibility can affect the quality of life in diabetic patients.