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Design of a Dynamic Transcranial Magnetic Stimulation Coil System

  • Sheng Ge
  • Ruoli Jiang
  • Ruimin Wang
  • Ji Chen
Systems-Level Quality Improvement
Part of the following topical collections:
  1. Systems-Level Quality Improvement

Abstract

To study the brain activity at the whole-head range, transcranial magnetic stimulation (TMS) researchers need to investigate brain activity over the whole head at multiple locations. In the past, this has been accomplished with multiple single TMS coils that achieve quasi whole-head array stimulation. However, these designs have low resolution and are difficult to position and control over the skull. In this study, we propose a new dynamic whole-head TMS mesh coil system. This system was constructed using several sagittal and coronal directional wires. Using both simulation and real experimental data, we show that by varying the current direction and strength of each wire, this new coil system can form both circular coils or figure-eight coils that have the same features as traditional TMS coils. Further, our new system is superior to current coil systems because stimulation parameters such as size, type, location, and timing of stimulation can be dynamically controlled within a single experiment.

Keyword

Transcranial magnetic stimulation Electromagnetic modeling Magnetic field distribution 

Notes

Acknowledgments

This work was supported by the National Natural Science Foundation of China (No. 51007040).

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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Key Laboratory of Child Development and Learning Science of Ministry of Education, Research Center for Learning ScienceSoutheast UniversityNanjingChina
  2. 2.Department of Electrical and Computer EngineeringUniversity of HoustonHoustonUSA
  3. 3.School of Electronic Engineering and Optoelectronic TechnologyNanjing University of Science and TechnologyNanjingChina

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