2010
DOI: 10.1152/jn.00116.2010
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Dipole Source Analyses of Early Median Nerve SEP Components Obtained From Subdural Grid Recordings

Abstract: Baumgärtner U, Vogel H, Ohara S, Treede RD, Lenz FA. Dipole source analyses of early median nerve SEP components obtained from subdural grid recordings. J Neurophysiol 104: 3029 -3041, 2010. First published September 22, 2010 doi:10.1152/jn.00116.2010. The median nerve N20 and P22 SEP components constitute the initial response of the primary somatosensory cortex to somatosensory stimulation of the upper extremity. Knowledge of the underlying generators is important both for basic understanding of the initial … Show more

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Cited by 18 publications
(13 citation statements)
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“…; see also Baumgärtner et al. ), whereas Jung et al. () localized the P22 dipole source in area 4, using an EEG dipole source analysis.…”
Section: Discussionmentioning
confidence: 99%
“…; see also Baumgärtner et al. ), whereas Jung et al. () localized the P22 dipole source in area 4, using an EEG dipole source analysis.…”
Section: Discussionmentioning
confidence: 99%
“…In addition, as highlighted above, while it has been proposed that the P22 SEP component may originate from the precentral motor area, the balance of evidence now indicates that the source is in area 1 (i.e., S1) (Baumgartner et al, 2010). It is also worth noting in this context that while S1 areas 1, 2 and are represented across the ventrobasal complex of the thalamus, area 3a has connectional relationships similar to those for area 4 (Jones et al, 1979), further emphasizing the likelihood that muscle afferent input relayed via area 3a will have a more direct influence on the state of the primary motor cortex, than cutaneous input relayed via other regions of S1.…”
Section: Mediation Of Interactions Between the Constituent Elements Omentioning
confidence: 99%
“…SEPs and SEFs were not precisely matched in latency, as expected, because MEG is insensitive to radially oriented sources while SEP components are supposedly, generated, in part, by radially oriented sources ( Baumgärtner et al, 2010 ). The discrepancy does not reduce the significance of our main finding, showing that, in CM, SEPs become giant only after the first cortical potential.…”
Section: Discussionmentioning
confidence: 74%