Abstract: Transcranial magnetic stimulation-motor evoked potential（TMS-MEP） test is one of the electrophysiological examination methods to evaluate the function of central nervous system. The value of the TMS-MEP has been recognized by some clinical forensic workers recently. This article reviews the principle and advantages of TMS-MEP and its application in functional evaluation of central nervous system and clinical treatment. The value of TMS-MEP in forensic medicine, especially in objective assessment of muscle strength after injury of central nervous system is also discussed.

Key words: forensic medicine, evoked potentials, motor, review[publication type], transcranial magnetic stimulation