Azin Sarraj Khorrami, Vahid Nejati,
Volume 7, Issue 1 (10-2019)
Abstract
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.
Omid Hosseinpanahi, Mehdi Zemestani,
Volume 8, Issue 1 (10-2020)
Abstract
Autism Spectrum Disorders (ASDs) are developmental neurological disorders characterized by defects in social interactions, communication, and repetitive behaviors. This study attempted to examine the efficacy of anodal transcranial direct current stimulation (tDCS) over the left dorsolateral prefrontal cortex (DLPFC) on social skills in children with ASD.Thirty-two children with confirmed ASD diagnoses were randomly allocated into a tDCS treatment group or a control group. The tDCS treatment group underwent 10 sessions of anodal tDCS stimulation applied simultaneously over the left DLPFC (F3) area, whereas the control group underwent the same procedures but with the use of sham tDCS stimulation.Gilliam Autism Rating Scale (GARS) and Social Skills Rating System was used to measure the Social Skills in two pre-test and post-test stages. Finally, the data were analyzed by the SPSS software using repeated measures analysis.Results showed that anodal tDCS significantly increased social skills in the experimental group after treatment compared to the control group.
