University of Tehran Journal of Sports and Motor Development and Learning 2008-9333 11 2 2019 08 23 The Effectiveness of Transcranial Direct Current Stimulation (tDCS) on Working Memory in Children with Developmental Coordination Disorder (DCD) The Effectiveness of Transcranial Direct Current Stimulation (tDCS) on Working Memory in Children with Developmental Coordination Disorder (DCD) 231 246 73107 10.22059/jmlm.2019.278121.1438 FA Golchin Shokreh Masters Student in Physical Training, Learning and Motor Control, Motor Behavior and Sport events Management, Faculty of Sport Sciences Fatemeh Hosseini . Associate Professor, Department of Motor Behavior, Faculty of Sport Sciences, Urmia University, Nazlou, Urmia, Iran Journal Article 2019 05 18 The aim of this study was to evaluate the effectiveness of transcranial direct current stimulation (tDCS) on working memory in children with developmental coordination disorder (DCD). The research method was quasi-experimental with pretest and posttest and retention with experimental and control groups. The research population consisted of children (age: 7-11 years old) in Urmia city in 2018. 16 children with DCD were selected as the sample with convenience sampling method and based on inclusion and exclusion criteria, and then were randomly divided into two groups: experimental (<em>n</em>=8) and control (<em>n</em>=8). The experimental group received 10 sessions (each session 10 minutes) of tDCS on f₄and f₃brain zones with 0.75 mA circuitry. The control group received 10 sessions of sham circuitry for 20 seconds, then the circuity was cut off, but they were not informed of this sham circuity. The data of working memory were collected using N-BACK test. The analysis of variance with repeated measurements was used to test the research hypothesis (<em>P</em>=0.05). The results showed that transcranial direct current stimulation (tDCS) had a significant effect on the enhancement of working memory and the effect would continue to the retention phase (<em>P</em>=0.05). This approach can be used to improve working memory in children with DCD. The aim of this study was to evaluate the effectiveness of transcranial direct current stimulation (tDCS) on working memory in children with developmental coordination disorder (DCD). The research method was quasi-experimental with pretest and posttest and retention with experimental and control groups. The research population consisted of children (age: 7-11 years old) in Urmia city in 2018. 16 children with DCD were selected as the sample with convenience sampling method and based on inclusion and exclusion criteria, and then were randomly divided into two groups: experimental (<em>n</em>=8) and control (<em>n</em>=8). The experimental group received 10 sessions (each session 10 minutes) of tDCS on f₄and f₃brain zones with 0.75 mA circuitry. The control group received 10 sessions of sham circuitry for 20 seconds, then the circuity was cut off, but they were not informed of this sham circuity. The data of working memory were collected using N-BACK test. The analysis of variance with repeated measurements was used to test the research hypothesis (<em>P</em>=0.05). The results showed that transcranial direct current stimulation (tDCS) had a significant effect on the enhancement of working memory and the effect would continue to the retention phase (<em>P</em>=0.05). This approach can be used to improve working memory in children with DCD. https://jsmdl.ut.ac.ir/article_73107_38e841be2a118da1fcd9f241b0dbc002.pdf