Assessment of the Effect of Transcranial Direct Current Stimulations (tDCS) in Focused Attention Enhancement Using Event-Related Potentials

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Moezzi Shokoufeh; GHOSHUNI MAJID; AMIRI MAHDI

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Journal: Neuroscience Journal of Shefaye Khatam Year:2020 | Volume:9 | Issue:1 Page(s): 25-35

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Title

Assessment of the Effect of Transcranial Direct Current Stimulations (tDCS) in Focused Attention Enhancement Using Event-Related Potentials

Author(s)

Moezzi Shokoufeh | GHOSHUNI MAJID | AMIRI MAHDI | Issue Writer Certificate

Keywords

AttentionQ1

Transcranial Direct Current StimulationQ1

Surveys and Ques tionnairesQ1

Abstract

Introduction: Attention is a multi-dimensional cognitive process. Transcranial direct current s timulation (tDCS) is an effective approach for the improvement of Attention. Using Eventrelated potentials (ERP) frequency components, the main goal of this study was to develop an Attention index to assess improvement of Attention in healthy people by applying tDCS. Materials and Methods: 13 subjects (6 males and 7 females, with mean age 24. 53± 4. 5 years) participated in this s tudy. Firs t, participants were asked to fill out the Adult ADHD self-report scale, Beck’ s depression, and Spielberger anxiety ques tionnaires. Simultaneous to recording their brain signals (19 channels), subjects were asked to participate in the Integrated visual and auditory (IVA) tes t. This tes t entails 500 s timulations, which include 125 auditory targets, 125 visual targets, 125 auditory non-target, and 125 visual non-target s timulations las ting for 13 minutes, after recording the electroencephalogram (EEG), the Dorsolateral Prefrontal Cortex (DLPFC) in subjects’ left hemisphere is s timulated using tDCS, with 1mA current for 20 minutes. The s timulation period was 5 consecutive days. To analyze the data, after removing noise and artifacts, ERP components were extracted using synchronous averaging. Then frequency domains feature in every s timulation type were extracted from ERP components. Correlation between percentage changes and the subject’ s IVA tes t results were calculated before and after applying tDCS. Results: The result showed that Beta energy significantly increased after applying tDCS. Furthermore, a significant correlation was observed between beta energy and auditory omission error in FP1 channel. Conclusion: tDCS decreases omission error and increases beta energy in auditory s timulation, which then leads to the improvement of focus Attention. Further s tudies are needed to assess the effect of tDCS on the improvement of Attention in auditory Attention deficit.

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APA: Copy

Moezzi, Shokoufeh, GHOSHUNI, MAJID, & AMIRI, MAHDI. (2021). Assessment of the Effect of Transcranial Direct Current Stimulations (tDCS) in Focused Attention Enhancement Using Event-Related Potentials. NEUROSCIENCE JOURNAL OF SHEFAYE KHATAM, 9(1 ), 25-35. SID. https://sid.ir/paper/414490/en

Vancouver: Copy

Moezzi Shokoufeh, GHOSHUNI MAJID, AMIRI MAHDI. Assessment of the Effect of Transcranial Direct Current Stimulations (tDCS) in Focused Attention Enhancement Using Event-Related Potentials. NEUROSCIENCE JOURNAL OF SHEFAYE KHATAM[Internet]. 2021;9(1 ):25-35. Available from: https://sid.ir/paper/414490/en

IEEE: Copy

Shokoufeh Moezzi, MAJID GHOSHUNI, and MAHDI AMIRI, “Assessment of the Effect of Transcranial Direct Current Stimulations (tDCS) in Focused Attention Enhancement Using Event-Related Potentials,” NEUROSCIENCE JOURNAL OF SHEFAYE KHATAM, vol. 9, no. 1 , pp. 25–35, 2021, [Online]. Available: https://sid.ir/paper/414490/en

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