fereshteh amouzadeh; hassan gharayagh zandy; manuchehr moradisabzevar; reza rostami; Ali Moghadamzadeh
Abstract
The prime objective of the current study was to comparative the impact of Transcranial Direct Current Stmulation (tDCS) on the Cognitive flexibility of hyperactive student-athletes. In this study, amongst the79 children diagnosed with ADHD, 30 students were randomly selected and divided into two groups ...
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The prime objective of the current study was to comparative the impact of Transcranial Direct Current Stmulation (tDCS) on the Cognitive flexibility of hyperactive student-athletes. In this study, amongst the79 children diagnosed with ADHD, 30 students were randomly selected and divided into two groups of 15 people, control and experimental, based on age, sex and pre-test results performed by the wisconsin card sorting test (WCST) . All subjects in the two groups received two different types of single-position and dummy anode stimulation on the area (F3) with cathode excitation in the area (SO) with a current of 1 mA for 15 minutes for ten sessions (p≤0.05) and after ten sessions, each group was re-examined. After one month, a follow-up test was performed according to the post-test with using the wisconsin card sorting test (WCST) and multivariate analysis of covariance was used to test statistical hypotheses. (p≤0.05). The results obtained by multivariate analysis of covariance revealed that applying single-session anodal tDCS influenced Cognitive flexibility of hyperactive student-athletes, and it led to a significant difference between the experimental and sham groups. The findings of the study indicated that the protocol of applying single-session anodal tDCS has the ability to improve the cognitive flexibility of hyperactive student-athletes.
Hamideh Jahanbakhsh; mehdi sohrabi; Alireza Saberi Kakhki; Ezzat khodashenas
Abstract
The purpose of this study was to investigate the effect of a selected training program under dual and single-task conditions on the cognitive flexibility of children with developmental coordination disorder. The research method was semi-experimental and with a pre-test-post-test- follow-up design with ...
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The purpose of this study was to investigate the effect of a selected training program under dual and single-task conditions on the cognitive flexibility of children with developmental coordination disorder. The research method was semi-experimental and with a pre-test-post-test- follow-up design with control group. The statistical population of this study included male students with developmental disorder in Ahvaz city. From the mentioned population, a sample of 39 subjects who were eligible for inclusion in the study was selected by available sampling method. After the Trail Making Test as a pre-test, they were randomly assigned to three groups: Exercise Dual task (n=13), single task training (n=13) and control (n=13). Then, the two experimental groups performed a selected training program with different conditions for 8 weeks and 3 sessions each 45 minutes each week. At the end, all subjects were followed by a Trail Making Test and two months later, a follow-up test. Data analysis using one-way covariance analysis as well as t-test showed that in post-test, cognitive flexibility in dual task group was superior to both single and control group (P < 0.05). In the follow-up test, this superiority remained only rather than the control group. Also, the single task group was superior to the control group in the post-test (P <0.05). Compared to single-task approaches, dual-task-based exercises can improve the cognitive flexibility of children with developmental coordination disorder, so using this method in the planning of classes is suggested for this group of children.