Olfactory sensitivity to α-ionone in humans and dogs
- 1 January 1981
- journal article
- Published by Oxford University Press (OUP) in Chemical Senses
- Vol. 6 (1) , 53-61
- https://doi.org/10.1093/chemse/6.1.53
Abstract
The ability of human subjects to detect α-ionone was measured over a range of concentrations and compared with that of German Shepherd dogs measured previously under comparable conditions. The mean minimal concentration detected by humans was 4.0×10 9 molecules / cm 3 which compares with a mean minimal concentration of 4.0×10 5 molecules / cm 3 for the dogs. In general, dogs could detect α-ionone in concentrations 1,000 to 10,000 times lower than could human subjects. Concentration-response curves for both species are similar in form and show a double reversal in their upper ranges.Keywords
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