The effectiveness of transcranial direct current stimulation (tDCS) on information processing speed in children with intellectual disability

IF 2.9 2区医学 Q1 EDUCATION, SPECIAL Research in Developmental Disabilities Pub Date : 2024-10-31 DOI:10.1016/j.ridd.2024.104863

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Abstract

Purpose

The speed of information processing is known to play an important role in mental disorders; This study investigated the effect of the transcranial direct current stimulation on information processing speed in children with intellectual disabilities.

Method

An experimental design with a pretest- posttest control group was used. The study population consisted of 8- to 14-year-old children with intellectual disabilities attending special primary schools in Urmia, Iran. 36 children were randomly assigned to the experimental and control groups (18 for each group). The experimental group received 10 sessions of tDCS with anode positioned over the F3 electrode (left DLPFC) and cathode over F4 (right DLPFC) The control group did not receive any intervention. Trail Making Test (TMT) was used to assess information processing speed. Data were analyzed using MANCOVA.

Results

The results revealed that tDCS led to a significant increase in information processing speed in the experimental group compared to the control group.

Conclusion

This study demonstrates that tDCS applied to the dorsolateral prefrontal cortex (DLPFC) is effective in enhancing information processing speed in children with intellectual disabilities. These finding have important implications for the development of interventions aimed at improving cognitive functioning in children with intellectual disabilities.

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经颅直流电刺激（tDCS）对智障儿童信息处理速度的影响

本研究探讨了经颅直流电刺激对智障儿童信息处理速度的影响。研究对象包括在伊朗乌尔米亚市特殊小学就读的 8 至 14 岁智障儿童。36 名儿童被随机分配到实验组和对照组（每组 18 人）。实验组接受 10 次 tDCS 治疗，阳极位于 F3 电极（左侧 DLPFC），阴极位于 F4（右侧 DLPFC）。使用 "追踪测试"（TMT）评估信息处理速度。结果表明，与对照组相比，tDCS 能显著提高实验组的信息处理速度。结论这项研究表明，应用于背外侧前额叶皮层（DLPFC）的 tDCS 能有效提高智障儿童的信息处理速度。这些发现对开发旨在改善智障儿童认知功能的干预措施具有重要意义。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Research in Developmental Disabilities Multiple-

CiteScore

5.50

自引率

6.50%

发文量

178

期刊介绍： Research In Developmental Disabilities is aimed at publishing original research of an interdisciplinary nature that has a direct bearing on the remediation of problems associated with developmental disabilities. Manuscripts will be solicited throughout the world. Articles will be primarily empirical studies, although an occasional position paper or review will be accepted. The aim of the journal will be to publish articles on all aspects of research with the developmentally disabled, with any methodologically sound approach being acceptable.