Investigating the Effect of Electrical Stimulation (tDCS) of the Prefrontal Cortex of the Brain on the Improvement of Behavioral and Neurological Symptoms of Children with Specific Learning Disabilities

Ali Aghaziarati; Fatemeh  Rajabi Fard; Hasan Rahimi; Kamdin Parsakia

doi:10.61838/kman.hn.1.2.6

Authors

Ali Aghaziarati * PhD in psychology and education of exceptional children, Faculty of Education and Psychology, University of Isfahan, Isfahan, Iran ali_aghaziarati@edu.ui.ac.ir

Fatemeh Rajabi Fard M.A, Psychology and Education of Exceptional Children, Central Tehran Branch, Islamic Azad University, Tehran, Iran

Hasan Rahimi Assistant Professor, Faculty of Educational Psychology, Farhangian University, Tehran, Iran

Kamdin Parsakia Department of Psychology and Counseling, KMAN Research Institute, Richmond Hill, Ontario, Canada

https://doi.org/10.61838/kman.hn.1.2.6

Keywords:

Electrical stimulation of the dorsolateral prefrontal cortex of the brain, behavioral syndromes, neuropsychological symptoms, specific learning disorders

Abstract

The aim of the current research was to investigate the effect of electrical stimulation of the dorsolateral prefrontal cortex on improving behavioral and neuropsychological symptoms in children with specific learning disorders. The research method was quasi-experimental. The study population comprised all children aged 7 to 12 years with specific learning disorders attending a private psychotherapy center in Tehran during 2022. From this group, 20 individuals were selected as the statistical sample using convenient random sampling, with 10 placed in the experimental group and 10 in the control group. Research tools included an electrical stimulation program for improving behavioral and neuropsychological symptoms in children with specific learning disorders, the Symptom Checklist-90-Revised (SCL-90R), and the Conners' Neuropsychological Questionnaire (2004). Statistical data analysis was performed using SPSS software and mixed analysis of variance with repeated measurements. The findings showed significant differences between the behavioral symptom scores and neuropsychological signs of the experimental and control groups in the pre-test and post-test phases. The results indicated that electrical stimulation of the dorsolateral prefrontal cortex had a significant effect on reducing both behavioral symptoms and neuropsychological signs in the experimental group. The effectiveness of this intervention was also sustained in the follow-up phase according to the Bonferroni post-hoc test. Based on the findings, it can be concluded that electrical stimulation of the dorsolateral prefrontal cortex can be used to reduce behavioral symptoms and neuropsychological signs in students with specific learning disorders. Therefore, it is suggested that this method be used in child and adolescent counseling centers and rehabilitation facilities.

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