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Pneumatic evoked potential. Sensory or auditive potential?

Abstract : In this study, evoked potentials (EPs) to a pneumatic, innocuous, and calibrated stimulation of the skin were recorded in 22 volunteers. A reproducible EP was recorded in 18 out of 22 subjects (82% of cases) with a mean latency of about 120-130 ms, and maximal amplitude at Cz. This EP actually consisted of two components, an auditory and a somatosensory one. Indeed, it was significantly decreased in amplitude, but did not disappear, when the noise generated by the air-puff was masked. We also verified that a stimulation close to the skin but not perceived by the subject was not associated with any EP. Conduction velocity between hand and shoulder was calculated around 25 m/s. This preliminary study demonstrates that pneumatic EPs can be recorded in normal volunteers.
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Submitted on : Monday, June 10, 2013 - 3:19:18 PM
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S. Condé, Christelle Créac'H, Xavier Brun, Richard Moreau, Philippe Convers, et al.. Pneumatic evoked potential. Sensory or auditive potential?. Clinical Neurophysiology, Elsevier, 2013, 43 (3), pp.189-195. ⟨10.1016/j.neucli.2013.05.002⟩. ⟨hal-00832336⟩



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