THE EFFECT OF CEREBRAL LATERALIZATION ON PSYCHOMOTOR PERFORMANCE IN SEDENTARY YOUTH

Abstract

The aim of this study is to investigate the effect of cerebral lateralization on psychomotor performance in sedentary youth. Our study was designed according to ex post facto experimental design. The manipulative effect of lateralization on psychomotor traits as an unmanipulated independent variable has been investigated. The study involved 60 sedentary male subjects in the 15-18 age group. Lateralization tests and psychomotor performance tests were applied to the subjects within the scope of this study. The obtained data were analyzed in SPSS 22.0 program. After the normality and homogeneity test, the Kruskal Wallis test was applied to analyze the fark between multiple groups (the flatness and distortions of the data that do not show normal distribution were evaluated and those in the range of +/- 2.00 points were assumed to show normal distribution). Values were presented as mean and standard deviation and examined at a significance level of 0.05. According to the results obtained, it is said that while it creates a significant fark in some tests, it does not have a significant effect in some tests. Therefore, the hand preference of sedentary individuals is to be determined on psychomotor performance tests by participants who used the dominant right hand, dominant left hand and both hands no significant farks were seen between participants who used the dominant right hand, dominant left hand, and both hands. However, in the evaluation of reaction and attention test data, it can be said that dominant right-handers perform better than dominant left-handed individuals. At the same time, according to the comparisons between both hand users and dominant left-hand users, it can be said that there is a significant fark in favor of both hand users.