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Transcranial magnetic stimulation (TMS) is a noninvasive method used to stimulate small regions of the brain. During a TMS procedure, a magnetic field generator, or "coil", is placed near the head of the person receiving the treatment.〔NiCE. January 2014 (Transcranial magnetic stimulation for treating and preventing migraine )〕 The coil produces small electric currents in the region of the brain just under the coil via electromagnetic induction. The coil is connected to a pulse generator, or stimulator, that delivers electric current to the coil.〔Michael Craig Miller for Harvard Health Publications. July 26, 2012 (Magnetic stimulation: a new approach to treating depression? )〕 TMS is used diagnostically to measure the connection between the brain and a muscle to evaluate damage from stroke, multiple sclerosis, amyotrophic lateral sclerosis, movement disorders, motor neuron disease and injuries and other disorders affecting the facial and other cranial nerves and the spinal cord. The use of single-pulse TMS was approved by the FDA for use in migraine〔FDA 13 December 2013 (FDA letter to eNeura re ''de novo'' classification review )〕 and repetitive TMS (rTMS) for use in treatment-resistant major depressive disorder. Evidence suggests it is useful for neuropathic pain and treatment-resistant major depressive disorder.〔〔 (6) 〕 Evidence also suggests that TMS may be useful for negative symptoms of schizophrenia and loss of function caused by stroke.〔 As of 2014, all other investigated uses of rTMS have only possible or no clinical efficacy.〔 Matching the discomfort of TMS to distinguish true effects from placebo is an important and challenging issue that influences the results of clinical trials.〔 The greatest risks of TMS are the rare occurrence of syncope (fainting) and even less commonly, induced seizures.〔 Other adverse effects of TMS include discomfort or pain, transient induction of hypomania, transient cognitive changes, transient hearing loss, transient impairment of working memory, and induced currents in electrical circuits in implanted devices.〔 == Medical uses == The use of TMS can be divided into diagnostic and therapeutic uses. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「transcranial magnetic stimulation」の詳細全文を読む スポンサード リンク
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