Descending and ascending spinal cord evoked potentials from oesophago-vertebral electrical stimulation in normal awake man.
Electrical stimulation of the spinal cord at C7D1 evoked triphasic descending spinal cord evoked potentials (DSCEP) from an oesophago-vertebral recording at D8D8 or D1OD1O. Ascending SCEPs (ASCEP) larger and similar in shape were also observed when the orientation of the stimulating and recording dipoles was reversed. Both SCEPs are in part generated by descending and ascending synchronous excitation of neuronal volume-conducted spinal cord dipoles.
Laboratorio di Neurofisiologia Clinica, Ia Clinica Neurologica, Università di Milano, Via G.B.Grassi 74, 20157 Milano.
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D000328:Adult; D004558:Electric Stimulation; D004576:Electromyography; D004947:Esophagus / Q000502:physiology*; D005071:Evoked Potentials / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012016:Reference Values; D013116:Spinal Cord / Q000033:anatomy & histology / Q000502:physiology*; D013131:Spine / Q000033:anatomy & histology / Q000502:physiology*