Journal ArticleDOI
Short latency somatosensory evoked potentials to median nerve stimulation: effect of low frequency filter.
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TLDR
The findings show that N20 arises in multiple generator sources of both far- and near-field origin and that multiple generators contribute to the SEP within 10-15 msec of the arrival of the volley in cerebral cortical elements.About:
This article is published in Electroencephalography and Clinical Neurophysiology.The article was published on 1983-01-01. It has received 106 citations till now. The article focuses on the topics: Somatosensory evoked potential & Scalp.read more
Citations
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Journal ArticleDOI
Electrical sources in human somatosensory cortex: identification by combined magnetic and potential recordings
TL;DR: The magnetic and potential wave forms were highly similar in morphology, and their spatial distributions were centered over sensorimotor cortex, were dipolar in shape, and differed in orientation by approximately 90 degrees as mentioned in this paper.
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Pathogenesis of giant somatosensory evoked potentials in progressive myoclonic epilepsy.
TL;DR: It is postulated that the giant SEP is generated, at least in part, by common physiological mechanisms to the myoclonus-related cortical spike, or that the latter may comprise a constituent of the former.
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Bit-mapped color imaging of human evoked potentials with reference to the N20, P22, P27 and N30 somatosensory responses
TL;DR: Bit-mapped color imaging of scalp potential fields evoked by sensory stimulation in humans disclosed significant features not identified by mere inspection of multichannel traces, including a tangential equivalent dipole in parietal area 3b.
Journal ArticleDOI
Somatic evoked high-frequency magnetic oscillations reflect activity of inhibitory interneurons in the human somatosensory cortex
TL;DR: It is speculated that the high-frequency oscillations represent a localized activity of the GABAergic inhibitory interneurons of layer 4, which have been shown in animal experiments to respond monosynaptically to thalamo-cortical input with a high- frequencies burst of short duration spikes.
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The magnetic and electric fields agree with intracranial localizations of somatosensory cortex.
William W. Sutherling,Paul H. Crandall,Terrance M. Darcey,D. P. Becker,M. F. Levesque,Daniel S. Barth +5 more
TL;DR: The combination of the three fields added information about the spatiotemporal activity of somatosensory cortex as well as resolving ambiguities in both EEG and ECoG.
References
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Journal ArticleDOI
Connexions of the somatic sensory cortex of the rhesus monkey. II. Contralateral cortical connexions.
E. G. Jones,T. P. S. Powell +1 more
TL;DR: The study on the somatic sensory cortex of the cat to the monkey is extended not only for the obvious reason of its closer affinity to man, but also because the larger size and clearer boundaries of the architectonic and functional subdivisions of the first somatics sensory area make these individual subdivisions more amenable to investigation.
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Varieties and distribution of non-pyramidal cells in the somatic sensory cortex of the squirrel monkey.
TL;DR: The morphology and distribution of cells which do not conform to the conventional pyramidal pattern have been investigated in rapid Golgi, Golgi‐Kopsch and Gol Gi‐Cox preparations from juvenile and mature squirrel monkeys.
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Central somatosensory conduction in man: neural generators and interpeak latencies of the far-field components recorded from neck and right or left scalp and earlobes.
Jean Edouard Desmedt,Guy Cheron +1 more
TL;DR: Early somatosensory evoked potential components to median nerve or finger stimulation were recorded with non-cephalic references in normal young adults to identify spinal entry time with the onset of the neck N11 or scalp P11 and suggest that FF3-FF4 are generated in medial lemniscus rather than above the thalamus.
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Somatosensory evoked potentials in healthy subjects and in patients with lesions of the nervous system.
TL;DR: Observations on somatosensory evoked potentials in 35 healthy subjects, recorded by Dawson’s methods, as well as results in 56 patients of the National Hospital, Queen Square, London, in whom evoked possibles were investigated during 1958 to 1960 are reported.
Journal ArticleDOI
Non-cephalic reference recording of early somatosensory potentials to finger stimulation in adult or aging normal man: differentiation of widespread N18 and contralateral N20 from the prerolandic P22 and N30 components.
Jean Edouard Desmedt,Guy Cheron +1 more
TL;DR: The changes associated with normal aging have been confirmed and extended and a new widespread component N18 was identified and shown to be generated below the cortex.
Related Papers (5)
Non-cephalic reference recording of early somatosensory potentials to finger stimulation in adult or aging normal man: differentiation of widespread N18 and contralateral N20 from the prerolandic P22 and N30 components.
Jean Edouard Desmedt,Guy Cheron +1 more