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Lookup NU author(s): Sean Carrie,
Dr Jack Scannell,
Dr Peter Dawes
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The normal perception of odour quality is poorly understood, so formulating meaningful tests of olfaction is difficult. While tests of odour discrimination and odour detection threshold have helped quantify olfactory dysfunction, there are not yet predictive relationships between sensitivity to particular odours and particular forms of olfactory dysfunction. Using 11 commonly encountered odours, 20 normosmics performed similarity ratings of odour pairs. Multidimensional scaling, a standard behavioural sciences data analysis method, was used to explore the perceptual relationships between the odours based on their pair-wise similarity ratings. Smell maps were created for each individual as was a common or archetypal map which indicated a commonality in individuals' odour perception, far greater than chance alone (P < 10(-6)). A preliminary analysis of four hyposmics suggests that they do not conform to the normosmic archetype. Future studies assessing the relationship between odours in the archetype should improve the selection of odours to be included in tests of odour discrimination.
Author(s): Carrie S, Scannell JW, Dawes PJD
Publication type: Article
Publication status: Published
Journal: Clinical Otolaryngology
ISSN (print): 1749-4478
ISSN (electronic): 1749-4486
Publisher: Wiley-Blackwell Publishing Ltd.
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