The effect of brain lateralization on the memory function
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Abstract
Introduction: This study aimed to investigate the effect of brain lateralization on the function of memory. In other words, this study was an attempt to find out if brain lateralization is effective on the function of memory. Materials and Methods: The study was conducted on 190 university students of Ahwaz Payam Noor University, using random cluster sampling (55 right-handed girls, 40 right-handed boys, 55 left-handed girls and 40 left-handed boys). They completed the Handedness Questionnaire of Chapman (1987), Word-fragment Completion and Yes/No Recognition Test. This study consisted of four sessions. First, the participants completed Handedness Questionnaire of Chapman. Then, they studied 30 frequent words, and completed Word-fragment Completion Test and finally did the Yes/No Recognition Test. Result: The results showed that the explicit memory was different between right-handed and left-handed students (P=0.004), but there was no difference between the two groups in implicit memory (P<0.614). Also right-handed girls were significantly different in explicit memory from right-handed boys, left-handed girl and male students. Conclusion: There were significant differences between right-handed and left-handed students in explicit memory and this difference was also observed between right-handed girls with right-handed boys and left-handed girls and boys.
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