Trigeminal and olfactory sensitivity: comparison of modalities and methods of measurement
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TL;DR
The threshold for nasal localization offers a suitable way to measure nasal irritation in normosmic persons and olfactory stimulation does not interfere with the measure since subjects cannot localize on that basis.
Abstract
The threshold for nasal localization offers a suitable way to measure nasal irritation in normosmic persons. Olfactory stimulation does not interfere with the measure since subjects cannot localize on that basis. Anosmic and normosmic persons have comparable sensitivity to nasal and ocular irritation. If anosmic persons have any lower sensitivity, as sometimes claimed, it would seem to have only trivial consequences for estimates of the irritative potency of VOCs.
