فصلنامه روانشناسی شناختی

The proposed link between brain laterality and individual differences in cognitive tasks provided the theoretical foundation for the present study. The main purpose of this study was to investigate this potential link, specifically between one aspect of brain function, namely hand dominance, and one type of cognitive task, namely the ability to perceive short intervals of time. The sample included 40 girls and 40 boys left hands and 40 girls and 40 boys right hands in school students fasa city  that were selected  with the help of the Edinburgh Handedness Inventory and also time Perception  measured  with  four methods of production, reproduction, verbal estimation and comparison by standard software .Regression analysis showed that age predicted negatively and significantly time perception to the measuring verbal estimation and production method. Handedness was positively and significantly predicted measuring verbal estimation method time perception. Logistic regression results also showed that Handedness predicted the time perception the measuring comparison method. In this study  , not showed significantly different between the sexes. Summarizes the results show that right-handed people than left-handers to perceive higher intervals of time but at the time discrepancies are close to each other have more wrong.  

The current research was conducted by the aim of studying the moderator role of age, Intelligence, and gender in relation to the Executive functions and reading function of elementary students.The sample included 250 students (124 boys and 126 girls) in elementary level that were selected by Multi-stage cluster sampling method among students of Karaj. Different functions were measured as these: Reading through reading test of Karami-noori and Moradi, intelligence by Raven's Progressive Matrices, working memory by Memory span test, attention by Continuous Performance Test, and planning and inhibition by Behavior Rating Inventory of Executive Functions (brief). Statistical methods of Pearson correlation and regression analysis were used.The correlation results showed that there is a positive and significant relation between executive functions (working memory, inhibition, subjective planning, and attention) and reading. Regression analysis result showed that intelligence and gender have not a moderator role in the relation of executive functions and reading.  But, age had a moderator role in the relation of executive functions and reading. The results of this research was consistent with Miyake's theory that believes executive functions are separate but related to each other, and individual differences of the students in these functions should be considered, because they affect their school performance.