Aj. Nelson et al., The afferent origin of the secondary somatosensory evoked potential from the lower limb in humans, BRAIN RES, 887(2), 2000, pp. 432-435
The afferent origin of the secondary somatosensory evoked potential elicite
d from stimulation of the sural and tibial nerves was investigated as the l
imb was cooled. It was hypothesized that the peak of this potential is init
iated from primary afferents in the A alpha group. We conclude that the pea
k of the secondary SEP arises from an afferent source whose diameter is of
similar size to that of large diameter A alpha afferents. (C) 2000 Elsevier
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