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Updated: Jun 23, 2025

Remotely Supervised Transcranial Direct Current Stimulation: An Update on Safety and Tolerability
Published on: October 7, 2017
A Comparison between the Effectiveness of computerized Cognitive Rehabilitation Training and transcranial Direct
Fatemeh Firouzan1, Vahid Sadeghi-Firouzabadi2, Vahid Nejati3
1Department of Psychology, Faculty of Education and Psychology, Shahid Beheshti University, Tehran, Iran.
Purpose:
Executive function impairments are among the most common dialysis side effects. The present study aims to compare the efficiency of transcranial Direct Current Stimulation (tDCS) with computerized Cognitive Rehabilitation Training (cCRT) on dialysis patients' executive functions.
Research Method:
The present study, a quasi-experimental effort, adopted a pre-test/post-test method that included a control (sham) group.
Design:
The study sample consisted of 30 participants, selected through the convenience sampling method, and categorized into three groups of cCRT, tDCS, and sham participants. The cCRT participants were asked to complete 8 tasks in Captain's Log MindPower Builder software. The tDCS participants were treated with a 0.06 mA/cm2 current with the anodal electrode on F3 and the cathodal electrode on Fp2. For the sham participants, the electrodes were put on the same regions but there was no current stimulation. The treatment lasted for 10 sessions carried out every other day.
Results:
The results of MANCOVA showed no significant difference between the sham group and the cCRT group in any of the executive function items. . However, between the sham group and the tDCS group was detected a significant difference in spatial working memory (p \< 0.05) and a marginally significant in cognitive flexibility (p = 0.091). No significant difference was reported between cCRT and tDCS groups in any item.
Conclusion:
According to the findings of the study, given the efficacy of tDCS on spatial working memory and cognitive flexibility for dialysis patients, it can be used to improve these skills.

