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The present study examined the effect of grouped meta-cognitive therapy on meta-cognitive beliefs of patients' anxieties suffering from generalized anxiety disorder. This research is a quasi-experimental with pre-test and post-test design with control group in which two groups of experiment and control are used. The present study population includes all state universities, Islamic Azad Universities of Tabriz students and East Azarbaijan Science and Research Branch that referred to above mentioned consulting centers correspondent with 4th edition of diagnostic and statistical mental disorders suffering from generalized anxiety disorder help book criteria. From the above community 20 persons (10 persons experiment group and 10 persons control group), (10 male and 10 female) with the use of structured clinical interview for mental disorders (SCID-I/CV), standard meta-cognitive beliefs questionnaire (MCQ-30), generalized anxiety disorder scale (GADS) and Back's anxiety questionnaire (BA-21) were selected and accidentally replaced in two groups of experiment and control. Participants' age range is between 18 to 30 years old with the mean of 27.78 and 2.60 variance. Grouped meta-cognitive therapy was performed in 10, 120 min sessions during 2 months in experimental group and participants in control group have received no treatment. All participants completed research questionnaire before and after treatment and in 3 months follow-up period. The present study, multivariate analysis of covariance demonstrated that grouped meta-cognitive therapy has significant effect on reducing negative meta-cognitive beliefs and also this therapy method has different effect on meta-cognitive beliefs' subdivisions of patients suffering from generalized anxiety disorder. Additionally, results suggest that grouped meta-cognitive therapy has a significant effect on patients' anxiety suffering from generalized anxiety disorder. The above mentioned results are maintained in follow-up period.

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The present study examined the effect of grouped meta-cognitive therapy on meta-cognitive beliefs of patients' suffering from generalized anxiety disorder. This research is a quasi-experimental with pre-test and post-test design with control group in which two groups of experiment and control are used. The present study population includes all state universities, Islamic Azad Universities of Tabriz students and East Azarbaijan Science and Research Branch that referred to above mentioned consulting centers correspondent with 4th edition of diagnostic and statistical mental disorders suffering from generalized anxiety disorder help book criteria. From the above community 20 persons (10 persons experiment group and 10 persons control group), (10 male and 10 female) with the use of structured clinical interview for mental disorders (SCID-I/CV), standard meta-cognitive beliefs questionnaire (MCQ-30) and generalized anxiety disorder scale (GADS) were selected and accidentally replaced in two groups of experiment and control. Participants' age range is between 18 to 30 years old with the mean of 27.78 and 2.60 variance. Grouped meta-cognitive therapy was performed in 10, 120 min sessions during 2 months in experimental group and participants in control group have received no treatment. All participants completed research questionnaire before and after treatment and in 3 months follow-up period. The present study multivariate analysis of covariance demonstrated that grouped meta-cognitive therapy has significant effect on reducing negative meta-cognitive beliefs and also this therapy method has different effect on meta-cognitive beliefs' subdivisions of patients suffering from generalized anxiety disorder. The above mentioned results are maintained in follow-up period.

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Introduction: Multiple sclerosis (MS) is a chronic, autoimmune, and inflammatory nervous system disease. It leads to the loss of myelin in the white matter of brain, spinal cord and optic nerves. As a chronic disease with sudden and unpredictable Side effects and complications of the disease will lead to disability and dependency in life. Causes neurologic symptoms and sig. The purpose of the present study is to examine the mediating role of meta-cognitive beliefs on the Cognitive-executive functions of brain، sleep disorders ، optic neuritis in Multiple Sclerosis Patients. Materials and Methods: This is an exploratory-correlative study in which new correlations between variables will be examined. The statistical population includes patie nts suffering from Multiple Sclerosis Patients referred to khorasan razavi Ms Society 100 consecutive referrals (74 women, 26 men) were selected through purposeful sampling. All participant ts completed Perfectionism Cognitions Inventory (PCI), Dysexecutive (DEX) questionnaire. Standard questionnaires quality of sleep and severity of the insomnia ) (ISI) ) The patients underwent clinical tests of visual functions, including visual acuity, contrast sensitivity and color visio Data analysis was done through Pearson's correlation coefficients, two-steps regression analyses and SPSS software version 16. Results: meta-cognitive beliefs as well as the Cognitive-executive functions of brain had a positive relationship with sleep disorders (P<0.001) and the relationship between meta-cognitive beliefs and degree of optic nerve involvement. Conclusion: It can be concluded that the relationship between meta-cognitive beliefs and Cognitive-executive functions of brain، sleep disorders ، optic neuritis in Multiple Sclerosis Patients is not a simple linear one. This is partly mediated by meta-cognitive beliefs deficit.