title: Movement-related potentials associated with single and repetitive movements recorded from human supplementary motor area.
abstract: To clarify the differences of movement-related potentials (MRPs) between single and repetitive movements, MRPs with finger movements were recorded from subdural electrodes chronically implanted on the supplementary motor area (SMA) in 2 patients, and MRPs with foot movements were recorded simultaneously from the SMA and the primary motor foot area in 1 patient. Repetitive movements did not elicit larger pre-movement potentials in the SMA as compared with single movements in all 3 patients. In the negative motor area, where electrical stimulation elicited inhibitory responses of voluntary movements and which is located at the rostral part of the SMA, pre-movement potentials to either single or repetitive movements were of approximately equal amplitude in 1 out of 3 patients. It is, therefore, most likely that the SMA plays an equally significant role in preparation for single and repetive voluntary movements.
authors.affiliation: Department of Neurology, Cleveland Clinic Foundation, OH 44106.
authors.forename: A
authors.initials: A
authors.lastname: Ikeda
authors.forename: H O
authors.initials: HO
authors.lastname: Lüders
authors.forename: R C
authors.initials: RC
authors.lastname: Burgess
authors.forename: H
authors.initials: H
authors.lastname: Shibasaki
mesh_terms: D000328:Adult; D001931:Brain Mapping; D004576:Electromyography; D004827:Epilepsy / Q000503:physiopathology; D005071:Evoked Potentials / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D009044:Motor Cortex / Q000503:physiopathology*; D009068:Movement / Q000502:physiology*