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Trigeminal somatosensory evoked potentials in humans.
K Van Loven1, R Jacobs, J Van Hees
1Laboratory of Oral Physiology, Dept. of Periodontology, Katholieke Universíteit Leuven, Kapucijnenvoer 7, B-3000 Leuven.
Electromyography and Clinical Neurophysiology
|October 30, 2001
Summary
Standardizing trigeminal somatosensory evoked potentials (TSEPs) recording protocols is crucial for reliable clinical interpretation. This paper reviews current TSEP methods to promote harmonization and enable comparative studies in neurology.
Area of Science:
- Neurology
- Neurophysiology
Background:
- Somatosensory evoked potentials (SEPs) are routine in neurology, but trigeminal SEPs (TSEPs) lack widespread clinical use.
- Diverse recording protocols for TSEPs hinder data comparison and interpretation.
Purpose of the Study:
- To provide an overview of TSEP recording methods.
- To advance the harmonization of TSEP protocols for consistent neural process analysis.
Main Methods:
- Review of various TSEP stimulation modes, sites, frequencies, and recording parameters.
- Analysis of signal diversity and latency characteristics.
Main Results:
- TSEPs exhibit short latency waves (<3 ms) of peripheral origin.
- Longer latency waves (12-15 ms, 19-22 ms) and very long latency waves (>100 ms) for painful stimuli are observed.
- The origin of longer latency waves remains debated.
Conclusions:
- A standardized TSEP protocol is necessary for reliable data interpretation and inter-study comparisons.
- Harmonization of TSEP protocols is a key step towards clinical standardization.
- Future research should explore combining TSEPs with neuroimaging techniques like fMRI or PET.