Document Detail


Spoken word recognition in toddlers who use cochlear implants.
MedLine Citation:
PMID:  19951921     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: The purpose of this study was to assess the time course of spoken word recognition in 2-year-old children who use cochlear implants (CIs) in quiet and in the presence of speech competitors.
METHOD: Children who use CIs and age-matched peers with normal acoustic hearing listened to familiar auditory labels, in quiet or in the presence of speech competitors, while their eye movements to target objects were digitally recorded. Word recognition performance was quantified by measuring each child's reaction time (i.e., the latency between the spoken auditory label and the first look at the target object) and accuracy (i.e., the amount of time that children looked at target objects within 367 ms to 2,000 ms after the label onset).
RESULTS: Children with CIs were less accurate and took longer to fixate target objects than did age-matched children without hearing loss. Both groups of children showed reduced performance in the presence of the speech competitors, although many children continued to recognize labels at above-chance levels.
CONCLUSION: The results suggest that the unique auditory experience of young CI users slows the time course of spoken word recognition abilities. In addition, real-world listening environments may slow language processing in young language learners, regardless of their hearing status.
Authors:
Tina M Grieco-Calub; Jenny R Saffran; Ruth Y Litovsky
Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of speech, language, and hearing research : JSLHR     Volume:  52     ISSN:  1558-9102     ISO Abbreviation:  J. Speech Lang. Hear. Res.     Publication Date:  2009 Dec 
Date Detail:
Created Date:  2009-12-02     Completed Date:  2010-02-09     Revised Date:  2014-09-17    
Medline Journal Info:
Nlm Unique ID:  9705610     Medline TA:  J Speech Lang Hear Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1390-400     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Acoustic Stimulation
Child Language*
Child, Preschool
Cochlear Implants*
Eye Movement Measurements
Female
Fixation, Ocular
Humans
Male
Neuropsychological Tests
Pattern Recognition, Physiological*
Photic Stimulation
Reaction Time
Speech
Speech Perception*
Task Performance and Analysis
Time Factors
Grant Support
ID/Acronym/Agency:
F32DC008452/DC/NIDCD NIH HHS; P30HD03352/HD/NICHD NIH HHS; R01 DC008365/DC/NIDCD NIH HHS; R01 DC008365-01A2/DC/NIDCD NIH HHS; R01 HD037466/HD/NICHD NIH HHS; R01DC008365/DC/NIDCD NIH HHS; R01HD37466/HD/NICHD NIH HHS; R21DC006642/DC/NIDCD NIH HHS
Comments/Corrections

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


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