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Electrical and Computer Engineering, Materials Science and Engineering, Ames Laboratory

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Accepted Manuscript

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IEEE Transactions on Magnetics




Transcranial Magnetic Stimulation (TMS) is a method of non-invasively modulating the excitability of the brain. TMS relies on the principle of electromagnetic induction in producing an electric field that stimulates neurons. Measuring the effect of TMS in real time and being able to determine its spatiotemporal resolution increase its potential in both research and clinical applications. In this paper, the authors model the electric fields of three TMS coils: Quadruple Butterfly Coil (QBC), Triple Halo Coil (THC) and the Magventure B65 coils, by performing computational finite element (FE) analysis using the Sim4life software. To evaluate the accuracy of the electromagnetic models, we devised a novel experimental protocol that compares the maximum field intensity stimulated using modeling with the induced voltage experimentally measured within a phantom brain in response to TMS.


This is a manuscript of an article published as Afuwape, Oluwaponmile F., Hiroyuki Oya, Aaron D. Boes, and David C. Jiles. "Measurement and Modeling of the Effects of Transcranial Magnetic Stimulation on the Brain." IEEE Transactions on Magnetics (2020). DOI: 10.1109/TMAG.2020.3008554. Posted with permission.


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