中文摘要：

Theclassiccableequationhasbeenusedtore presenttheexcitationoflongandstraightperipheral nervesinanelectricfield.Itpredictsthatexcitation occursnearthemaximumofthenegativefirstspa tialgradient-E'‖=- Ex/ xinthedirectionofan x axialfiber[1],whichisinagreementwithexperi mentsofelectricstimulation(ES).Here,theelec tricfieldparalleltofiberwillbereferredtoasa longitudinalfieldE‖.Therefore,theactivating functionofperipheralnervesundermagneticstimu lation(MS)isthoughttobethesameasthatin ES[2],whichpredictsthataf...