Effectiveness of Transcranial Direct Current Stimulation (TDCS) onExecutive Functions(selective attention and flexibility) in Students with Dyslexia

The purpose of this research is investigation of the transcranial direct current stimulation tDCS,effect on executive functions (selective attention and flexibility) of students with dyslexia. In this semi-experimental study, one with pre-test and post-test. the statistical population has been all students of elementary school who had dyslexia in Sirjan city in school year of 95-96 that Out of this number, 20 subjects, including 6 boys and 14 girls in the first and second grades, were selected through the sampling method. The students were randomly divided into two control and experimental groups. After doing the pre-test, experimental group was exposed to tDCS 10 sessions and each session for 20 minutes and then post-test was given to both control and experimental groups. In order to gather data Stroup and Wisconsin tests were used. Data were analyzed by multivariate analysis of variance (MANCOVA) and SPSSv22. Results showed that there is a significant difference between the control group and the experimental group in selective attention and flexibility(P<0/001). It was concluded that tDCS has positive impact on selective attention and flexibility in children with dyslexia.