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Transcranial magnetic stimulation

Transcranial magnetic stimulation (TMS) allows non-invasive study and modulation of cortical excitability in humans. Changes in cortical excitability in physiological and pathological conditions can be tracked by measurements such as motor threshold, motor evoked potentials, recruitment curves, intracortical facilitation and inhibition. The central motor conduction time can estimate neural transmission in central motor pathways. Changes in areas of representation in sensorimotor cortex can be studied with cortical mapping. Modulation of cortical processing can be used to evaluate different brain functions. Therapeutic use in depression, Parkinson's disease and epilepsy has raised great interest over the past decade. Non-invasive cortical mapping may be achieved by combining TMS to other neurophysiological/ neuroimaging techniques. TMS has great potential both as an investigational and as a therapeutical tool in Neurology and Psychiatry.

transcranial magnetical stimulation; neural plasticity; brain mapping

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