Stimulation Location Determination using a 3D Digitizer with High-Definition Transcranial Direct Current Stimulation

Wanting Chen; Rui Chen; Qinghua He

doi:10.3791/60263

Determinação de localização de estimulação usando um digitalizador 3D com estimulação transcrania...

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Neuroscience

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JoVE Journal Neuroscience

Stimulation Location Determination using a 3D Digitizer with High-Definition Transcranial Direct Current Stimulation

Determinação de localização de estimulação usando um digitalizador 3D com estimulação transcraniana de alta definição da corrente direta

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07:20 min

December 20, 2019

DOI: 10.3791/60263-v

Wanting Chen¹, Rui Chen¹, Qinghua He^1,2,3,4,5

¹Faculty of Psychology,Southwest University, ²Key Laboratory of Cognition and Personality, Ministry of Education,Southwest University, ³Southwest University Branch, Collaborative Innovation Center of Assessment toward Basic Education Quality,Beijing Normal University, ⁴Key Laboratory of Mental Health, Institute of Psychology,Chinese Academy of Sciences, ⁵Chongqing Collaborative Innovation Center for Brain Science

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Overview

This article presents a protocol combining a 3D digitizer with high-definition transcranial direct current stimulation (tDCS) to enhance the accuracy of stimulation location determination. The method integrates the 10-10 electrode placement system, improving reproducibility and suitability for use with other techniques like functional near-infrared spectroscopy.

Key Study Components

Area of Science

Neuroscience
Neurosimulation
Electrophysiology

Background

Transcranial direct current stimulation (tDCS) is often limited by electrode placement accuracy.
High definition tDCS can improve spatial targeting of brain stimulation techniques.
3D digitization allows for precise localization of electrodes based on a standardized system.
This method can provide complementary data through integration with functional imaging techniques.

Purpose of Study

To enhance the accuracy and reproducibility of electrode placement in tDCS.
To provide a cost-effective, portable solution for brain stimulation localization.
To facilitate precise brain stimulation for research and therapeutic purposes.

Methods Used

The study utilizes a 3D digitizer system in combination with tDCS to determine stimulation locations precisely.
It employs the 10-10 electrode placement system to identify specific brain regions.
Steps include preparing an electrode cap, localizing anatomical landmarks, and recording position data.
Stimulation is initiated using a configured tDCS device after confirming electrode placement accuracy.

Main Results

The protocol allows for precise identification of stimulation locations, improving the accuracy of interventions.
Utilization of 3D digitization minimizes measurement errors associated with electrode placement.
Results show enhanced spatial resolution for brain stimulation applications.
The method is validated through systematic overlapping measurements with cerebral cortex regions.

Conclusions

This study demonstrates a novel approach to improve tDCS effectiveness by enhancing electrode placement accuracy.
The integration with 3D digitization technologies contributes to personalized brain stimulation strategies.
Overall, the method has significant implications for understanding and manipulating neuronal mechanisms in research.

Frequently Asked Questions

What are the advantages of this 3D digitization method?

It improves the accuracy and reproducibility of electrode placements, facilitating precise brain stimulation. Additionally, it is cost-effective and portable.

How is the electrode placement achieved?

Electrode placement utilizes the 10-10 system by marking specific anatomical landmarks on the scalp for accurate localization.

What outcomes can be measured using this method?

The method allows for precise stimulation targeting, minimizing measurement errors, and providing reliable data for brain stimulation studies.

Can the method be adapted for other applications?

Yes, it can be used in conjunction with techniques like functional near-infrared spectroscopy to enhance functional mapping of brain regions.

What are key considerations when using this protocol?

It is essential to ensure that neither the digitizer source nor the sensor moves during measurements to maintain accuracy.

Apresentado aqui é um protocolo para alcançar maior precisão na determinação da localização da estimulação, combinando um digitalizador 3D com estimulação transcraniana de alta definição da corrente direta.

Este método utiliza um sistema 10-10 para superar as limitações da colocação transcraniana de eletrodos de estimulação contínua de corrente, melhorando a precisão e a reprodutibilidade do método. As principais vantagens dessa técnica são seu baixo custo, aplicação simples e portabilidade. Este método é adequado para uso com outras técnicas, por exemplo, espectroscopia funcional quase infravermelha, para verificar a localização de regiões específicas do cérebro de interesse.

Esta técnica é muito simples se você estiver familiarizado com a exigência proporcional do sistema 10-10. Demonstrando o procedimento será Chenyu Lv, um estudante de pós-graduação. Para preparar uma tampa de retenção de eletrodo, coloque uma tampa de natação na forma da cabeça e meça a distância entre a nação e a inion.

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