Document Detail

The influence of taste on swallowing apnea, oral preparation time, and duration and amplitude of submental muscle contraction.
MedLine Citation:
PMID:  17071940     Owner:  NLM     Status:  MEDLINE    
Prior research has documented a modulating effect of taste on swallowing. We hypothesized that presentation of tastant stimuli would be a significant variable in swallowing-respiratory coordination, duration of oral bolus preparation, and submental muscle contraction. Twenty-three healthy females were presented with 1-cm(3) gelatin samples flavored with 4 tastants of increasing intensities. Visual analogue scale ratings of perceived intensity of each were used to identify relative equivalent concentrations across the 4 tastants. Data were then collected during ingestion of 5 trials of the 4 equivalent tastants using measurements of nasal airflow and submental surface electromyography (sEMG) to record biomechanical measures. Chi-square analysis failed to identify a statistically significant influence of taste on the phase location of swallowing apnea. Repeated measures analysis of variance demonstrated significant taste effects for oral preparation time, submental sEMG amplitude, and duration (P < 0.02). Sweet tastants were prepared for a shorter time when compared with bitter tastants. Swallow duration for sour, salty, and bitter tastants were longer than sweet and neutral tastants. Sour tastants resulted in the greatest amplitude of submental muscle contraction during swallowing. This study supports existing research that found that sour substances were swallowed with more effort when compared with other tastes.
L P Leow; M-L Huckabee; S Sharma; T P Tooley
Publication Detail:
Type:  Journal Article     Date:  2006-10-27
Journal Detail:
Title:  Chemical senses     Volume:  32     ISSN:  0379-864X     ISO Abbreviation:  Chem. Senses     Publication Date:  2007 Feb 
Date Detail:
Created Date:  2007-02-01     Completed Date:  2007-03-27     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8217190     Medline TA:  Chem Senses     Country:  England    
Other Details:
Languages:  eng     Pagination:  119-28     Citation Subset:  IM    
Van der Veer Institute for Parkinson's and Brain Research, 66 Stewart Street, Christchurch, New Zealand.
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MeSH Terms
Deglutition / physiology*
Middle Aged
Muscle Contraction*
Taste / physiology*

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