On the assessment of spontaneous respiratory changes in respiration-olfactometry

摘要

Introduction Alterations of breathing pattern evoked by odors are used to proof the integrity of the olfactory system in the sense of respiratory olfactometry. Spontaneous breathing changes normally cannot be distinguished from evoked changes. It is therefore necessary to repeatedly apply stimuli with a pure odorant during tidal breathing, randomized with neutral air, to detect a majority of olfactory-evoked respiratory changes.