Pneumatic evoked potential. Sensory or auditive potential?

Summary Study aim In this study, evoked potentials (EPs) to a pneumatic, innocuous, and calibrated stimulation of the skin were recorded in 22 volunteers. Methods Air-puff stimuli were delivered through a home-made device (INSA de Lyon, Laboratoire Ampère, CHU de Saint-Étienne, France) synchronized...

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Bibliographic Details
Published in:Clinical neurophysiology 2013-06, Vol.43 (3), p.189-195
Main Authors: Condé, S, Créac’h, C, Brun, X, Moreau, R, Convers, P, Peyron, R
Format: Article
Language:English
Subjects:
Adolescent
Adult
Air
Analysis of Variance
Automatic
Biological and medical sciences
Data Interpretation, Statistical
Electrodiagnosis. Electric activity recording
Electroencephalography
Engineering Sciences
Evoked Potentials, Auditory - physiology
Evoked Potentials, Somatosensory - physiology
Female
Humans
Intégration multimodale
Investigative techniques, diagnostic techniques (general aspects)
Life Sciences
Male
Medical sciences
Methodology
Multimodal integration
Méthodologie
Nervous system
Neurology
Neurons and Cognition
Physical Stimulation
Pneumatic evoked potentials
Potentiels évoqués pneumatiques
Reproducibility of Results
Sensation - physiology
Skin - innervation
Skin Physiological Phenomena
Somatosensory system
Somesthésie
Young Adult
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Summary:Summary Study aim In this study, evoked potentials (EPs) to a pneumatic, innocuous, and calibrated stimulation of the skin were recorded in 22 volunteers. Methods Air-puff stimuli were delivered through a home-made device (INSA de Lyon, Laboratoire Ampère, CHU de Saint-Étienne, France) synchronized with an EEG recording (Micromed® ). Results 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. Conclusions This preliminary study demonstrates that pneumatic EPs can be recorded in normal volunteers.
ISSN:0987-7053
1388-2457
1769-7131
DOI:10.1016/j.neucli.2013.05.002