Yonsei Med J.  2001 Feb;42(1):9-13. 10.3349/ymj.2001.42.1.9.

The central conduction time in posterior tibial and pudendal nerve somatosensory evoked potentials

• Choi YC
• Kim YD
• Kim WJ
• Yang JW
• Moon JS

• KMID: 720582
• DOI: http://doi.org/10.3349/ymj.2001.42.1.9

Abstract

The somatosensory evoked potentials (SEPs), following stimulation of both the posterior tibial nerve (PTSEP) and pudendal nerve (PNSEP), comprise of the lumbar negative, subcortical and cortical potential. These can be used to assess the long somatosensory pathway, including peripheral, intraspinal and intracranial conduction along the entire length. This study aimed to compare the central conduction time between the PTSEP and the PNSEP, and to investigate the relationship between the intraspinal and intracranial conduction time in the SEP pathway. The SEPs following stimulation of the posterior tibial nerve at the ankle and the pudendal nerve at the shaft of the penis were analyzed in 20 normal male subjects. The central conduction of the PNSEP was found to be slower than that of the PTSEP (p <0.05). This difference is due to a delay in conduction rather than that of intracranial conduction.

Keyword

Somatosensory evoked potential; central conduction time; intraspinal conduction time; intracranial conduction time

MeSH Terms

Adolescence
Adult
Evoked Potentials, Somatosensory*
Human
Male
Middle Age
Neural Conduction*
Penis/innervation*
Tibial Nerve/physiology*
Time Factors