{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,21]],"date-time":"2026-10-21T03:34:27Z","timestamp":1792553667979,"version":"4.5.0"},"reference-count":26,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[1985,10]]},"abstract":"<jats:p content-type=\"fine-print\">\u2713 Somatosensory evoked cortical potentials (SSEP's) were recorded in 27 healthy subjects using tibial and peroneal nerve stimulation with cephalic and non-cephalic references. Four major peaks were present in all recordings. Analysis of these components showed that SSEP's collected after tibial nerve stimulation with non-cephalic reference (linked earlobes) produced the most consistent clearly defined component peaks. Average latency, amplitude, and interpeak latency differences are presented for these SSEP's. Significant correlations were obtained between the height of the individual and the P<jats:sub>1<\/jats:sub>, N<jats:sub>2<\/jats:sub>, P<jats:sub>2<\/jats:sub>, and N<jats:sub>3<\/jats:sub> latencies, and the N<jats:sub>3<\/jats:sub>-P<jats:sub>1<\/jats:sub> interpeak latency. These results suggest that reproducible SSEP's can be obtained from tibial nerve stimulation in normal subjects using minimal numbers of stimulus presentations (28 to 64).<\/jats:p>\n<jats:p content-type=\"fine-print\">The SSEP's from 34 patients with varying degrees of spinal cord trauma were compared with the SSEP's from normal subjects. These comparisons involved the P<jats:sub>1<\/jats:sub>, N<jats:sub>2<\/jats:sub>, P<jats:sub>2<\/jats:sub>, and N<jats:sub>3<\/jats:sub> latencies and the interpeak latency values, as well as the amplitude values. Patients with normal sensory and motor neurological examinations could be distinguished from patients showing decreased sensory and motor findings or clinically complete lesions on the basis of peak latency and interpeak latency values. The latter two groups could not be distinguished from one another. In general, all patient groups had SSEP's of lower amplitude than did normal individuals, but the groups could not be distinguished from one another. These results indicate that SSEP's can be a useful clinical tool for differentiation of complete from incomplete spinal cord lesions, but do not invariably predict recovery of function.<\/jats:p>","DOI":"10.3171\/jns.1985.63.4.0544","type":"journal-article","created":{"date-parts":[[2009,5,8]],"date-time":"2009-05-08T16:22:30Z","timestamp":1241799750000},"page":"544-551","source":"Crossref","is-referenced-by-count":49,"title":["Somatosensory evoked potentials evaluated in normal subjects and spinal cord-injured patients"],"prefix":"10.3171","volume":"63","author":[{"given":"Robert","family":"Chabot","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Donald H.","family":"York","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Clark","family":"Watts","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wendy 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Recent studies of the anastomotic substitution pathways.","volume":"35","author":"Lazorthes","year":"1971"},{"key":"b15","series-title":"Neurosurgery","doi-asserted-by":"publisher","first-page":"422","DOI":"10.1227\/00006123-198304000-00009","article-title":"Evoked potentials from the motor tracts in humans.","volume":"12","author":"Levy","year":"1983"},{"key":"b16","series-title":"Neurosurgery","doi-asserted-by":"publisher","first-page":"287","DOI":"10.1227\/00006123-198409000-00001","article-title":"Motor evoked potentials from transcranial stimulation of the motor cortex in humans.","volume":"15","author":"Levy","year":"1984"},{"key":"b17","series-title":"Electroencephalogr Clin Neurophysiol","doi-asserted-by":"publisher","first-page":"336","DOI":"10.1016\/0013-4694(81)90062-6","article-title":"Origin of far-field subcortical potentials evoked by stimulation of the posterior tibial nerve.","volume":"52","author":"Lueders","year":"1981"},{"key":"b18","series-title":"Clin Neurosurg","doi-asserted-by":"publisher","first-page":"367","DOI":"10.1093\/neurosurgery\/20.CN_suppl_1.367","article-title":"The clinical use of somatosensory evoked potentials in spinal cord injury.","volume":"20","author":"Perot","year":"1973"},{"key":"b19","series-title":"Current Controversies in Neurosurgery.","first-page":"160","article-title":"Somatosensory evoked potentials in the evaluation of patients with spinal cord injury","author":"Perot","year":"1976"},{"key":"b20","series-title":"Ann NY Acad Sci","doi-asserted-by":"publisher","first-page":"359","DOI":"10.1111\/j.1749-6632.1982.tb50802.x","article-title":"Scalp-recorded somatosensory evoked potentials to stimulation of nerves in the lower extremities and evaluation of patients with spinal cord trauma.","volume":"388","author":"Perot","year":"1982"},{"key":"b21","series-title":"Surg Neurol","first-page":"203","article-title":"Somatosensory evoked potentials in acute spinal cord injury: prognostic value.","volume":"9","author":"Rowed","year":"1978"},{"key":"b22","series-title":"IEEE Trans Biomed Eng","first-page":"481","article-title":"Characteristics of somatosensory evoked potentials recorded over the spinal cord and brain of man.","volume":"28","author":"Sherwood","year":"1981"},{"key":"b23","series-title":"Behavior and Brain Electrical Activity.","first-page":"303","article-title":"Information and mathematical quantification of brain state","author":"Thatcher","year":"1975"},{"key":"b24","series-title":"Electroencephalogr Clin Neurophysiol","doi-asserted-by":"publisher","first-page":"379","DOI":"10.1016\/0013-4694(72)90118-6","article-title":"Analysis of somatosensory evoked potentials to lateral popliteal nerve stimulation in man.","volume":"33","author":"Tsumoto","year":"1972"},{"key":"b25","series-title":"Electroencephalogr Clin Neurophysiol","doi-asserted-by":"publisher","first-page":"159","DOI":"10.1016\/0013-4694(83)90070-6","article-title":"Scalp recorded somatosensory evoked potentials to posterior tibial nerve stimulation in humans.","volume":"56","author":"Vera","year":"1983"},{"key":"b26","series-title":"Spine","doi-asserted-by":"publisher","first-page":"832","DOI":"10.1097\/00007632-198311000-00004","article-title":"Utilization of somatosensory evoked cortical potentials in spinal cord injury: prognostic limitations.","volume":"8","author":"York","year":"1983"}],"container-title":["Journal of Neurosurgery"],"original-title":[],"link":[{"URL":"https:\/\/thejns.org\/view\/journals\/j-neurosurg\/63\/4\/article-p544.xml","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/thejns.org\/downloadpdf\/journals\/j-neurosurg\/63\/4\/article-p544.xml","content-type":"text\/html","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/thejns.org\/downloadpdf\/journals\/j-neurosurg\/63\/4\/article-p544.xml","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,7,24]],"date-time":"2022-07-24T17:14:23Z","timestamp":1658682863000},"score":1,"resource":{"primary":{"URL":"https:\/\/thejns.org\/view\/journals\/j-neurosurg\/63\/4\/article-p544.xml"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1985,10]]},"references-count":26,"journal-issue":{"issue":"4"},"URL":"https:\/\/doi.org\/10.3171\/jns.1985.63.4.0544","relation":{},"ISSN":["0022-3085"],"issn-type":[{"value":"0022-3085","type":"print"}],"subject":[],"published":{"date-parts":[[1985,10]]}}}