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Brain behavioral systems have major effect on personality and behavior. Behavioral Inhibitory (BIS) and Behavioral Activity (BAS) systems are related to avoidance and approach behavior، respectively. Hyperactivity and hypoactivity of these systems can lead to a broad domain of psychopathologies. This study was conducted to evaluate the relationships among brain behavioral systems، metacognitive beliefs، and thought control strategies in patients with Obsessive-Compulsive Disorder (OCD). In a correlational study that was conducted in 2011، convenience sampling was used for selecting 80 patients with OCD from two hospitals (22 Bahman and Ibn-e-Sina) in Mashhad، Iran. All subjects completed these questionnaires: Gray-Wilson Personality Questionnaire (GWPQ)، Metacognition Questionnaire-30 (MCQ-30)، Thought Control Questionnaire (TCQ)، and Maudsely Obsessive Compulsive Inventory (MOCI). Data were analyzed using Pearson correlation and stepwise multiple regression. There were significant relationships between need to control thoughts and self-punishment strategy with BIS (P<. 01). Multiple regression analysis revealed significant role for cognitive self-consciousness، positive beliefs about worry، negative beliefs about uncontrollability and danger (P<. 05); self-punishment and worry strategies (P<. 001); and BIS (P<. 001) in predicting OCD symptoms. There is correlation among behavioral systems، metacognitive beliefs، and thought control strategies in patients with OCD. Being Aware of metacognitive levels and using appropriate thought strategies can clear the relationship of brain behavioral systems with OCD.

Methods and Materials: 500 females from Mashhad city high schools at local areas number 2, 5 and 7 were selected. At first the areas were chosen on cluster sampling, and then 2 schools were selected randomly from each cluster. After this subjects were selected randomly based on their high school speciality and grade being obtained. All subjects completed 2 questionnaires: demographic characteristics, and risk of running away from home. Data were analyzed by using Pearsonian correlation, one way analysis of variance, and Scheffe post hoc test. Data indicated that significant correlation were found between risk of females running away and age, family members, family income, parent age and educations. The results of one way analysis of variance and Scheffe post hoc test revealed academic achievement, birth order, and person in charge type influential in risk of running away from home among female adolescents. The influence of other variables was not meaningful. This study shows that demographic characteristic have meaningful effect on the risk of females’ running away from home.