Journal ArticleDOI
Scalp topography of somatosensory evoked potentials following electrical stimulation of femoral nerve.
TLDR
Up to 29 channels of somatosensory evoked potentials (SEPs) were recorded in 10 normal volunteers following unilateral femoral nerve (FN) and tibial nerve (TN) electrical stimulation and no correlation was found between the peak latency of P26 and body height.About:
This article is published in Electroencephalography and Clinical Neurophysiology.The article was published on 1989-03-01. It has received 20 citations till now. The article focuses on the topics: Somatosensory evoked potential & Evoked potential.read more
Citations
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Seeing through the skull: Advanced EEGs use MRIs to accurately measure cortical activity from the scalp
TL;DR: These results demonstrate that EEGs can provide images of superficial cortical electrical activity with spatial detail approaching that of O15 PET scans, and equivalent dipole modeling with EEGs appears to have the same degree of spatial resolution as that reported for MEGs.
Journal ArticleDOI
Topography of somatosensory evoked magnetic fields following posterior tibial nerve stimulation.
Ryusuke Kakigi,Sachiko Koyama,Minoru Hoshiyama,Motoko Shimojo,Yoshihiro Kitamura,Shoko Watanabe +5 more
TL;DR: Short- and middle-latency SEFs are mainly generated in area 3b in SI contralateral to the stimulated nerve, and responses generated in areas 1 of SI and SII affect the SEFs to some degree, but interindividual differences are large compared with SEFs evoked by upper limb stimulation.
Journal ArticleDOI
AAEM minimonograph 19: somatosensory evoked potentials.
Michael J. Aminoff,Andrew Eisen +1 more
TL;DR: This minimonograph considers current concepts of the physiologic basis of the SEP, discusses the different techniques available to elicit and record it, and critically analyzes its clinical utility.
Journal ArticleDOI
SEP topographies elicited by innocuous and noxious sural nerve stimulation. I. Identification of stable periods and individual differences.
TL;DR: Scalp potential topographies evoked by innocuous and noxious sural nerve stimulation were obtained from 15 human subjects and had similar onset and offset latencies and the same major features across subjects, but the topographic patterns were not identical across subjects.
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Brain electrical source analysis of primary cortical components of the tibial nerve somatosensory evoked potential using regional sources
TL;DR: A brain electrical source analysis in the P40 time window found that tibial nerve somatosensory evoked potentials show higher amplitudes ipsilateral to the side of stimulation, whereas subdural recordings revealed a source in the foot area of the contralateral hemisphere, a paradoxical lateralization.
References
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Cerebral location of international 10–20 system electrode placement
TL;DR: The results indicate that CT scanning or other neuroimaging techniques which reveal detailed cerebral anatomy would be potentially highly useful in defining the generators of electrocerebral potentials recorded from the scalp.
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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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Localization in somatic sensory and motor areas of human cerebral cortex as determined by direct recording of evoked potentials and electrical stimulation.
TL;DR: This study is unique in that cutaneous receptive fields related to specific cortical sites were defined by mechanical stimulation, as is done in animals, in contrast to electrical stimulation of peripheral nerves at fixed sites, as in scalp EP recordings.
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Color imaging of parietal and frontal somatosensory potential fields evoked by stimulation of median or posterior tibial nerve in man
TL;DR: Somatosensory evoked potentials to median or fingers or posterior tibial nerve stimulation were recorded with earlobe reference in normal young adults with characteristic focal distribution suggesting that they reflected one or more generators in cortical areas.