Document Detail

The role of temporal cues in word identification by younger and older adults: effects of sentence context.
MedLine Citation:
PMID:  19045808     Owner:  NLM     Status:  MEDLINE    
Prior investigations, using isolated words as stimuli, have shown that older listeners tend to require longer temporal cues than younger listeners to switch their percept from one word to its phonetically contrasting counterpart. The extent to which this age effect occurs in sentence contexts is investigated in the present study. The hypothesis was that perception of temporal cues differs for words presented in isolation and a sentence context and that this effect may vary between younger and older listeners. Younger and older listeners with normal-hearing and older listeners with hearing loss identified phonetically contrasting word pairs in natural speech continua that varied by a single temporal cue: voice-onset time, vowel duration, transition duration, and silent interval duration. The words were presented in isolation and in sentences. A context effect was shown for most continua, in which listeners required longer temporal cues in sentences than in isolated words. Additionally, older listeners required longer cues at the crossover points than younger listeners for most but not all continua. In general, the findings support the conclusion that older listeners tend to require longer target temporal cues than younger normal-hearing listeners in identifying phonetically contrasting word pairs in isolation and sentence contexts.
Sandra Gordon-Salant; Grace Yeni-Komshian; Peter Fitzgibbons
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural    
Journal Detail:
Title:  The Journal of the Acoustical Society of America     Volume:  124     ISSN:  1520-8524     ISO Abbreviation:  J. Acoust. Soc. Am.     Publication Date:  2008 Nov 
Date Detail:
Created Date:  2008-12-02     Completed Date:  2009-05-14     Revised Date:  2013-06-04    
Medline Journal Info:
Nlm Unique ID:  7503051     Medline TA:  J Acoust Soc Am     Country:  United States    
Other Details:
Languages:  eng     Pagination:  3249-60     Citation Subset:  IM    
Department of Hearing and Speech Sciences, University of Maryland, College Park, Maryland 20742, USA.
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MeSH Terms
Aging / physiology
Comprehension / physiology*
Middle Aged
Recognition (Psychology)
Sound Spectrography
Speech / physiology*
Speech Intelligibility*
Speech Perception
Time Factors
Grant Support

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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