Trigeminal evoked potentials following brief air puff: Enhanced signal‐to‐noise ratio
- 1 April 1988
- journal article
- research article
- Published by Wiley in Annals of Neurology
- Vol. 23 (4) , 332-338
- https://doi.org/10.1002/ana.410230404
Abstract
Trigeminal somatosensory evoked potentials (TSEPs) were studied by using fast-rising air puffs generated by a highspeed air control system. Within 100 ms, air puff stimulation of the face elicited three negative and three positive components over the contralateral, as well as the ipsilateral, sensory area. The air puff TSEPs showed a uniform change in peak latencies and amplitudes as a function of stimulus intensity. The bilateral distribution of the TSEPs stands in sharp contrast to the exclusively contralateral distribution of the SEPs to stimulation of the hand. Air puffs evoked a larger response than electrical stimulation, although the latency remained the same. Unlike electrical stimuli, air puff induces neither stimulus nor muscle artifacts. This, combined with the higher amplitude of the recorded response, enhances the signal-to-noise ratio.This publication has 20 references indexed in Scilit:
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