Document Detail


Intranasal localizability of odorants: influence of stimulus volume.
MedLine Citation:
PMID:  21310764     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
When an odorant is presented to one side of the nose and air to the other, the ability to localize which side received the odorant depends upon trigeminal nerve stimulation. It has been shown that performance on this lateralization task increases as stimulus concentration increases. In this study, we determined the influences of stimulus volume and sex on the ability to localize each of 8 odorants presented at neat concentrations: anethole, geraniol, limonene, linalool, menthol, methyl salicylate, phenyl ethanol, and vanillin. At a low stimulus volume (11 mL), only menthol was localized at an above-chance level. At a high stimulus volume (21 mL), above-chance localization occurred for all odorants except vanillin. Women were significantly better than men in localizing menthol. Stimuli rated as most intense were those that were most readily localized. The detection performance measures, as well as rated intensity values, significantly correlated with earlier findings of the trigeminal detectability of odorants presented to anosmic and normosmic subjects. This study suggests that differences in stimulus volume may explain some discrepant findings within the trigeminal chemosensory literature and supports the concept that vanillin may be a "relatively pure" olfactory stimulus.
Authors:
J Frasnelli; T Hummel; J Berg; G Huang; R L Doty
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't     Date:  2011-02-10
Journal Detail:
Title:  Chemical senses     Volume:  36     ISSN:  1464-3553     ISO Abbreviation:  Chem. Senses     Publication Date:  2011 May 
Date Detail:
Created Date:  2011-04-12     Completed Date:  2011-07-29     Revised Date:  2013-06-30    
Medline Journal Info:
Nlm Unique ID:  8217190     Medline TA:  Chem Senses     Country:  England    
Other Details:
Languages:  eng     Pagination:  405-10     Citation Subset:  IM    
Affiliation:
Smell and Taste Clinic, Department of Otorhinolaryngology, University of Dresden Medical School, Fetscherstrasse 74, Dresden, Germany.
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MeSH Terms
Descriptor/Qualifier:
Adult
Female
Humans
Male
Nose / metabolism*
Odors* / analysis
Sex Factors
Smell*
Trigeminal Nerve / metabolism
Young Adult
Grant Support
ID/Acronym/Agency:
P01 DC 00161/DC/NIDCD NIH HHS
Comments/Corrections

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