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Transcranial magnetic stimulation

Julian Paul Keenan, Alvaro Pascual-Leone
From: Science & Medicine: Volume 6 Number 1: Page 8 (February 1999)

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Abstract: Inducing an electric current in a nearby conductor by applying an external magnetic field is the basic principle of transcranial magnetic stimulation, which is a noninvasive method fo ractivating neurons. TMS is being used clinically to provide central motor conduction time studies, and a number of promising experimental applications are being pursued. Mapping of cortical networks to enhance imaging studies relies on transient disruption of neuronal function, while delivery of paired TMS pulses can establish defferences in cortical excitability between individuals. Long-lasting modulation of brain activity by repetitive stimulation may be therapeutic in certain neuropsychiatric conditions.

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