NDLI: Precise coil positioning system using multi-articular arm for location of stimulated brain area in transcranial magnetic stimulation

Content Provider	IEEE Xplore Digital Library
Author	Odagaki, M. Inoue, T. Ikeda, T. Fukuda, H. Hiwaki, O.
Copyright Year	2009
Description	Author affiliation: Graduate School of Information Sciences, Hiroshima City University, Japan (Odagaki, M.; Inoue, T.; Ikeda, T.; Fukuda, H.; Hiwaki, O.)
Abstract	We developed a precise coil positioning system for determining stimulated sites in transcranial magnetic stimulation (TMS) by using a multi-articular mechanical arm. A figure-of-eight coil used in TMS can induce a focal electric field beneath the coils center in the cortex; therefore, the point on the cortex beneath the center of the figure-of-eight coil has been conventionally regarded as a stimulating site. However, a stimulating site determined in this manner is not believed to be plausible, because the electric field induced in TMS is dispersed over the brain vectorially. Our system was developed on the basis of the cortical structure of the brain cortex and the direction of the induced electric field. In order to verify the system accuracy, Motor Evoked Potentials (MEPs) elicited by TMS at the hand muscles innervated by the primary motor cortex (M1) were measured as electromyogram (EMG). And functional vectorial map of the excitability of M1 in the resting state was obtained by rotating the stimulation coil at a constant location.
Starting Page	42
Ending Page	45
File Size	567911
Page Count	4
File Format	PDF
ISBN	9781424420728
DOI	10.1109/NER.2009.5109230
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-04-29
Publisher Place	Turkey
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Coils Brain Cerebral cortex Neurons Humans Neural engineering Muscles transcranial magnetic stimulation Magnetic field measurement motor evoked potential Electromyography Magnetic stimulation primary motor cortex
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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