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Odour suppression in binary mixtures

Cashion, Larry W., Livermore, A. and Hummel, T. (2006). Odour suppression in binary mixtures. Biological Psychology,73(3):288-297.

Document type: Journal Article
Citation counts: Scopus Citation Count Cited 10 times in Scopus Article | Citations

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Title Odour suppression in binary mixtures
Author Cashion, Larry W.
Livermore, A.
Hummel, T.
Journal Name Biological Psychology
Publication Date 2006
Volume Number 73
Issue Number 3
ISSN 0301-0511   (check CDU catalogue open catalogue search in new window)
Scopus ID 2-s2.0-33846164794
Start Page 288
End Page 297
Total Pages 10
Place of Publication Shannon
Publisher Elsevier Science
HERDC Category C1 - Journal Article (DEST)
Abstract It has been suggested that odours causing stronger trigeminal activation suppress weaker trigeminal stimuli and that mixed olfactory-trigeminal stimuli suppress odorants that only activate one of these systems. Volunteer normosmic participants (n = 20) were exposed to six odorants with varying trigeminal impact to test the hypothesis that more intense trigeminal odorants would suppress weaker trigeminal stimuli in binary odour mixtures. It was also hypothesised that stronger trigeminal odorants would dominate six-odour mixtures. The predicted linear pattern of suppression was not seen, with a quadratic model emerging from the data. Stronger trigeminal stimuli failed to dominate six-odour mixtures. Despite the fact that the major hypothesis was not supported, it can be hypothesised from this experiment that the effect of suppression in binary mixtures is reliant upon two major effects: (1) the association formed between odours and the multiple memory systems that they interact with during the encoding and recognition processes, and (2) the balance between activation of the olfactory and trigeminal systems. (c) 2006 Elsevier B.V. All rights reserved.
Keywords interaction
event-related potentials
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Created: Wed, 28 Nov 2007, 14:16:08 CST