Document Detail

Behavioral auditory assessment of young infants: methodological limitations or natural lack of auditory responsiveness?
MedLine Citation:
PMID:  11200188     Owner:  NLM     Status:  MEDLINE    
The determination of auditory thresholds by means of behavioral techniques in young infants can be difficult. This could be the result of limitations in methodology, a lack of observable auditory responsiveness, or both. In the current study, 2- and 4-month old infants were tested under enhanced conditions for obtaining behavioral responses (i.e., salient auditory stimuli, reduced visual distractions, reinforced correct responses). A two-interval, forced-choice task with four intensity levels was used. Although a behavioral threshold was obtained for the 4-month-olds, threshold determination for the 2-month-olds remained elusive. In light of the current findings and previous studies of visual acuity of infants, these results suggest a lack of behavioral responsiveness to auditory stimuli for the younger infants rather than methodological limitations. With infants in the 2-month-old age range, clinical audiologists should expect few behavioral responses to auditory stimuli at intensity levels below those that elicit startle responses.
C B Hicks; A M Tharpe; D H Ashmead
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  American journal of audiology     Volume:  9     ISSN:  1059-0889     ISO Abbreviation:  Am J Audiol     Publication Date:  2000 Dec 
Date Detail:
Created Date:  2001-01-29     Completed Date:  2001-03-15     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  9114917     Medline TA:  Am J Audiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  124-30     Citation Subset:  IM    
Vanderbilt University, Nashville, Tennessee, USA.
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MeSH Terms
Auditory Threshold*
Hearing Tests*
Infant Behavior
Mass Screening*
Reference Values
Sound Localization
Speech Reception Threshold Test

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