NDLI: Peak Latency Differences in Evoked Potentials Elicited by Painful Dental and Cutaneous Stimulation

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Peak Latency Differences in Evoked Potentials Elicited by Painful Dental and Cutaneous Stimulation

Content Provider	Scilit
Author	Chapman, C. Richard Schimek, Franz Colpitts, Yoko H. Gerlach, R. Dong, Willie K.
Copyright Year	1985
Description	Long-latency evoked potentials (EPs) (50–400 msec) have been obtained from humans during both noxious stimulation of tooth and cutaneous sites in studies of pain and analgesic states. This study investigated whether EPs elicited by tooth and lip stimulation differed in peak latency and whether EPs obtained during painful cutaneous stimulation showed increasing peak latency values with increased conduction distance. Twelve volunteers received painful electrical stimulation at four sites: tooth, lip, thumb, and toe in counterbalanced orders. Evoked potentials recorded at vertex were summation averaged over 128 trials. Multivariate stepwise discriminate analysis was used to determine whether any of the peak latencies of the event-related potentials differed across stimulation sites. No significant latency differences were observed across lip, thumb or toe at any of the major peaks. Since peaks of these EPs did not vary in latency with conduction distance, they appear to reflect processing at higher levels rather than sensory transmission. The negative 140 msec peak of the dental waveform occurred significantly later than the same peak at cutaneous sites.
Related Links	http://www.tandfonline.com/doi/pdf/10.3109/00207458509149130
ISSN	00207454
e-ISSN	15435245
DOI	10.3109/00207458509149130
Journal	International Journal of Neuroscience
Issue Number	1-2
Volume Number	27
Language	English
Publisher	Informa UK Limited
Publisher Date	1985-01-01
Access Restriction	Open
Subject Keyword	Journal: International Journal of Neuroscience Anesthesiology Potentials Elicited Cutaneous Stimulation Dental Peak Latency Evoked Latency Differences
Content Type	Text
Resource Type	Article
Subject	Neuroscience Medicine

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