Topography of spatially enhanced human shortlatency somatosensory evoked potentials
- 3 March 1997
- journal article
- research article
- Published by Wolters Kluwer Health in NeuroReport
- Vol. 8 (4) , 991-994
- https://doi.org/10.1097/00001756-199703030-00034
Abstract
IN the present study modern high resolution electroencephalography (EEG) was used to spatially enhance human median nerve short-latency somatosensory evoked potentials (SEPs). It was shown that the spatially enhanced N30 consisted of two frontal subcomponents, one located in the frontal–lateral area of the scalp, the other located in the frontal—mesial area. Both of these subcomponents were most reduced in amplitude (or disappeared) during concomitant hand movement ipsilateral to the stimulus, but were differentially influenced by executed contralateral movement and imagined ipsilateral movement. These results support the hypothesis of an involvement of the frontal–mesial cortex (including the supplementary motor area) in the generation of the frontal N30.Keywords
This publication has 9 references indexed in Scilit:
- Median nerve somatosensory evoked potentials. Apomorphine-induced transient potentiation of frontal components Clin. Parkinson's disease and in parkinsonismElectroencephalography and Clinical Neurophysiology/Evoked Potentials Section, 1995
- Mental movement simulation affects the N30 frontal component of the somatosensory evoked potentialElectroencephalography and Clinical Neurophysiology/Evoked Potentials Section, 1992
- Centrifugal and centripetal mechanisms involved in the ‘gating’ of cortical SEPs during movementElectroencephalography and Clinical Neurophysiology/Evoked Potentials Section, 1988
- Specific gating of the early somatosensory evoked potentials during active movementElectroencephalography and Clinical Neurophysiology, 1987
- LOCALIZATION, TIMING AND SPECIFICITY OF GATING OF SOMATOSENSORY EVOKED POTENTIALS DURING ACTIVE MOVEMENT IN MANBrain, 1987
- Bit-mapped color imaging of human evoked potentials with reference to the N20, P22, P27 and N30 somatosensory responsesElectroencephalography and Clinical Neurophysiology/Evoked Potentials Section, 1987
- Supplementary motor area structure and function: Review and hypothesesBehavioral and Brain Sciences, 1985
- The origin of thalamic inputs to the arcuate premotor and supplementary motor areasJournal of Neuroscience, 1984