Yousef Moghadas Tabrizi; Meysam Yavari Kateb; Shahnaz Shahrbanian
Abstract
Aim:The purpose of this study was to investigate the effects of one session of transcranial direct current stimulation (tDCS) on hand mental rotation (HMR) and visuo-spatial working memory (VSWM). Methods: The 54 right handed students of sport science at University of Tehran were selected and then were ...
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Aim:The purpose of this study was to investigate the effects of one session of transcranial direct current stimulation (tDCS) on hand mental rotation (HMR) and visuo-spatial working memory (VSWM). Methods: The 54 right handed students of sport science at University of Tehran were selected and then were randomly divided into two groups of anodal (N=27) and sham (N=27), and further were divided in two subgroups according to site of stimulation (F4 & P4) (total of four groups). Before and after the application of tDCS, participants completed the HMR Task and Corsi test (to study VSWM). Findings: Results of anodal group showed a significant difference between the pre-test and post-test in reaction time and accuracy of HMR, also reaction time and span of Corsi in both sites (F4 & P4) . Also, comparing the effects between two sites in HMR, revealed that subjects responded faster and more accurately in F4 than P4. But only in foreward Corsi test, response time was faster in F4than P4. Conclusion: According to the findings of the present study, both F4 and P4 sites could be used to improve motor imagery and visual-spatial memory while the F4 showed better result.
mozhgan fallah; Yousef Moghadas Tabrizi; Hassan gharayagh zandi
Volume 4, Issue 13 , August 2018, , Pages 97-108
Abstract
Introduction: Achieving the optimal performance of attention is the most important goals among athletes in the race. The purpose of this study was to investigate the effect of neurofeedback training on attention and performance in free throw shooting in nonprofessional athletes. Method: 24 athletes ...
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Introduction: Achieving the optimal performance of attention is the most important goals among athletes in the race. The purpose of this study was to investigate the effect of neurofeedback training on attention and performance in free throw shooting in nonprofessional athletes. Method: 24 athletes in both genders were voluntarily participated in this study. In the pre- test, SELECTIVE AND DIVIDED ATTENTION TEST and also basketball free throw test was performed. The experimental group practice alpha/ theta and theta/ SMR protocols for ten sessions, then post- test was performed. Data were analyzed using two related samples tests, Mann-Whitney U and ANCOVA. Findings: The results showed significant changes in increase the attention and performance in experimental group. Conclusion: Neurofeedback has a potential to retraining the brain waves activities to improve performance and attention of athletes in various sports disciplines. It is suggested to sport psychologists that use these methods for improve attention and performance.
