Effect of transcranial Direct Current Stimulation (tDCS) on DLPFC and VMPFC on Improvement of delay discounting in children with Attention Deficit and Hyperactivity Symptoms

Children with ADHD symptoms prefer smaller and immediate gain rather than bigger and long-term ones. This problem would result in impulsive  behaviors and decision making. The aim of this study was to show the effect of transcranial Direct Current Stimulation (tDCS) on DLPFC and VMPFC on Improvement of delay discounting in children with Attention Deficit and Hyperactivity Symptoms.In this study, 20 children with hyperactivity and attention deficit symptoms were selected by available sampling method and each of the subjects participated in three montages including anodal/cathodal tDCS on dorsolateral prefrontal cortex and ventral medial prefrontal cortex, the reversed montage, and sham stimulation condition and assessed by delay discounting task. The findings show that there is significant difference in the performance of the subjects in the delay discounting task which was performed on different stimulation positions p<0/05 and anodal stimulation of VMPFC significantly improved delay discounting.