PMID: 3745037Aug 1, 1986Paper

Respiratory volume perception through the nose and mouth determined noninvasively

Journal of Applied Physiology
J FoxN Wolkove

Abstract

The relative importance of the nose vs. the mouth in the perception of respiratory volumes has never been assessed, nor have previous respiratory perception studies been performed noninvasively. Using respiratory inductive plethysmography, we monitored 12 normal subjects noninvasively when breathing either exclusively through the nose or mouth. The sensation of inspired volume mouth breathing was compared with that of nose breathing over a wide range of the inspiratory capacity. The psychophysical techniques of tidal volume duplication, tidal volume doubling, and magnitude estimation were utilized. A just noticeable difference was calculated from the constant error of the tidal volume duplication trials. The exponents for magnitude estimation were 1.06 and 1.07 for nose and mouth breathing, respectively. The other psychophysical techniques also revealed no differences in nose and mouth volume perception. These results suggest that tidal volume changes are perceived equally well through the nose and mouth. Furthermore, the location of the receptors, important in volume perception, is probably at a distal point common to the nose and mouth.

Citations

Feb 20, 2015·Journal of Neurophysiology·Jennifer R Vranish, E Fiona Bailey
May 1, 1990·Acta Oto-laryngologica·A LeibermanP Cole

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