‘Gating’ of somatosensory evoked potentials begins before the onset of voluntary movement in man
The inflow of somatosensory information to the cerebral cortex is modified before and during active movement in animals. This phenomenon has been termed ‘gating’ and occurs at several levels of the sensory pathway. We studied somatosensory evoked potentials (SEPs) to stimulation of the median nerve...
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| Veröffentlicht in: | Brain research 1985-11, Vol.348 (1), p.183-186 |
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| creator | Starr, Arnold Cohen, Leo G. |
| description | The inflow of somatosensory information to the cerebral cortex is modified before and during active movement in animals. This phenomenon has been termed ‘gating’ and occurs at several levels of the sensory pathway. We studied somatosensory evoked potentials (SEPs) to stimulation of the median nerve at the wrist during voluntary movement of the ipsilateral thumb in man. Results indicate that SEPs are attenuated shortly after a command to move (approximately 100 ms before the onset of the electromyogram (EMG)), become maximally attenuated with maximum EMG and return to normal size when movement is finished. |
| doi_str_mv | 10.1016/0006-8993(85)90377-4 |
| format | Article |
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Results indicate that SEPs are attenuated shortly after a command to move (approximately 100 ms before the onset of the electromyogram (EMG)), become maximally attenuated with maximum EMG and return to normal size when movement is finished.</description><identifier>ISSN: 0006-8993</identifier><identifier>EISSN: 1872-6240</identifier><identifier>DOI: 10.1016/0006-8993(85)90377-4</identifier><identifier>PMID: 4063823</identifier><language>eng</language><publisher>Netherlands: Elsevier B.V</publisher><subject>Adolescent ; Adult ; Afferent Pathways - physiology ; afferent somatosensory information ; Cerebral Cortex - physiology ; Electric Stimulation ; Evoked Potentials, Somatosensory ; gating ; Humans ; input ; Median Nerve - physiology ; Motor Activity - physiology ; Nervous System Physiological Phenomena ; Reaction Time - physiology ; Sensation - physiology ; somatosensory evoked potential ; Thalamus - physiology ; voluntary movement</subject><ispartof>Brain research, 1985-11, Vol.348 (1), p.183-186</ispartof><rights>1985 Elsevier Science Publishers B.V. 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| ispartof | Brain research, 1985-11, Vol.348 (1), p.183-186 |
| issn | 0006-8993 1872-6240 |
| language | eng |
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| source | MEDLINE; Elsevier ScienceDirect Journals |
| subjects | Adolescent Adult Afferent Pathways - physiology afferent somatosensory information Cerebral Cortex - physiology Electric Stimulation Evoked Potentials, Somatosensory gating Humans input Median Nerve - physiology Motor Activity - physiology Nervous System Physiological Phenomena Reaction Time - physiology Sensation - physiology somatosensory evoked potential Thalamus - physiology voluntary movement |
| title | ‘Gating’ of somatosensory evoked potentials begins before the onset of voluntary movement in man |
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