Document Detail

The role of taste and oral somatosensation in olfactory localization.
MedLine Citation:
PMID:  20623439     Owner:  NLM     Status:  MEDLINE    
Although there is only one set of olfactory receptors, odours are experienced as smells when sniffing things (e.g., sniffing a wine's bouquet) and as flavours when the olfactory stimulus is present in the mouth (e.g., drinking wine). How this location binding--external versus internal environment--is achieved is poorly understood. Experiment 1 employed a new procedure to study localization, which was then used to explore whether localization is primarily dependent upon simultaneous oral somatosensation. Experiment 2, using solutions of varying viscosity, and Experiment 3, using oral movement of varying vigour, revealed that sniffed odours are not localized to the mouth by somatosensation alone. Instead, Experiment 4 demonstrated that a tastant needs to be present and that increasing tastant concentration generates increasing oral localization. Experiment 5 found that this reliance upon gustation reflects the previously observed "confusion" that people show for taste and smell stimuli in the mouth. We suggest that this "confusion" reflects the gustatory system's superior ability to suppress olfactory attention, thus assisting flavour binding.
Richard J Stevenson; Megan J Oaten; Mehmet K Mahmut
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-07-09
Journal Detail:
Title:  Quarterly journal of experimental psychology (2006)     Volume:  64     ISSN:  1747-0226     ISO Abbreviation:  Q J Exp Psychol (Hove)     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-01-31     Completed Date:  2011-06-01     Revised Date:  2011-10-19    
Medline Journal Info:
Nlm Unique ID:  101259775     Medline TA:  Q J Exp Psychol (Hove)     Country:  England    
Other Details:
Languages:  eng     Pagination:  224-40     Citation Subset:  IM    
Macquarie University, Sydney, Australia.
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MeSH Terms
Mouth* / physiology
Movement / physiology
Smell* / physiology
Taste* / physiology
Touch* / physiology
Young Adult
Reg. No./Substance:
57-50-1/Sucrose; 7732-18-5/Water

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