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Science. 1977 Feb 25;195(4280):796-8.

Differential sensitivity for smell: "noise" at the nose.

Abstract

The ability of subjects to resolve differences in concentration of chemicals in the vapor phase by smell rivaled the optimum performance of chromatographs. In some instances, subjects resolved a difference in concentration of only 5 percent. The reported inability of olfaction to register fine differences in intensity seems to be largely a result of fluctuations in the stimulus.

PMID:
836592
[PubMed - indexed for MEDLINE]
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