The purpose of the present study was to determine the effect of metacognitive therapy (MCT) on symptoms of body dysmorphic disorder (BDD) and on symptoms of thought-fusion, by means of a wait-list controlled clinical trial. Participants were referred from dermatology and cosmetic surgery clinics in the city of Isfahan, Iran, and 20 patients were selected on the basis of DSM-IV-TR diagnostic criteria for BDD. They were randomly assigned to either the experimental or the wait-list control group. The Yale-Brown Obsessive Compulsive Scale Modified for Body Dysmorphic Disorder (BDD-YBOCS) and the Thought-Fusion Inventory (TFI) were used as the outcome measures. The experimental group received 8 weekly metacognitive intervention sessions. The control group was in the waiting-list until the end of the follow-up. Measures were taken at pre-test, post-test (after 2 months) and follow-up (after 6-months). The results of analysis of variance showed that MCT significantly reduced the symptoms of BDD and of thought-fusion, compared to the wait-list. Effects on both outcome measures were maintained at 6-months follow-up.

The purpose of the present study was to evaluate the effectiveness of mindfulness training in enhancing executive function and decreasing symptoms of depression and anxiety in multiple sclerosis patients. The population in this study consisted of people with MS who referred to Karaj city MS society in 1394. These people didn't experience medicinal changes during the study period and their expanded disability status score (EDSS) was between 0 and 5.5. 40 of them were randomly selected and placed into two experimental and control groups (20 for the experimental and the other for the control group). The treatment of mindfulness training was held in 8 sessions of group training, once a week and for 2 hours. The statistical method of multivariate analysis of covariance was used. The measurement tools were the State-Trait Anxiety Inventory (STAI), the Beck Depression Inventory-II (BDI-II) and the Wisconsin Card Sorting Test (WCST). After all, the results in both groups were compared and evaluated by the use of analysis of covariance. The results showed significant differences in symptoms of anxiety and depression between the two groups (p < 0.05); however, no significant difference was observed in executive function between trained and untrained patients (p > 0.05). Generally, the results of this research showed positive effects of mindfulness training on reducing anxiety and depression among patients with MS and ineffectiveness of mindfulness training on their executive function. Therefore, considering that there is no certain treatment for MS plus results of this study, the application of mindfulness training can be quite useful to reduce levels of anxiety and depression in patients with MS.

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IBQ was developed with pain clinic patients and there have been no studies examining the extent to which the IBQ or scales from it can identify hypochondrial patients. In the current study, we examined the psychometric properties of 18 item Persian-language version of the Health Anxiety IInventory-Short Form. A positive feature of the HAI-SF is that the scale now includes items that cover each of the impairment domains in a proposed diagnostic criteria for hypochondria distress and functional impairment [12].