SP-2. What dose TMS stimulate?

Transcranial magnetic stimulation (TMS) is a technique to stimulate the nervous system non-invasively through the intact scalp and skin. The TMS machine delivers a short pulse of electric current into a TMS coil to generate a quick changing magnetic field surrounding the coil as an example of Ampere's law. TMS stimulates the neuronal circuits with the eddy current induced by the changing magnetic field, not the magnetic field its self, based on Faraday's law. To generate enough power for stimulating human's brain, a TMS machine is generally built to generate a current of around 8000 A for a 2.5–4 Tesla output, although it may vary between machine types and manufacturers.

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