Document Detail


Differences in distortion product otoacoustic emission phase recorded from human neonates using two popular probes.
MedLine Citation:
PMID:  20649189     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
DPOAE (2f(1)-f(2)) phase was measured across a 3-octave frequency range from two groups of newborns using ER10B+ and ER10C probe microphones. A marked phase shift was noted in the mid-to-high frequency range for newborn data recorded with the ER10C only. In contrast, the ER10B+ produced phase that was approximately invariant as a function of frequency for most of the range. Probe-related phase shifts can be effectively eliminated by correcting for variations in the phases of the primary tones. Results highlight the importance of detecting and correcting for system-related phase shifts so they are not misinterpreted as cochlear in origin.
Authors:
Carolina Abdala; Sumitrajit Dhar
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Journal of the Acoustical Society of America     Volume:  128     ISSN:  1520-8524     ISO Abbreviation:  J. Acoust. Soc. Am.     Publication Date:  2010 Jul 
Date Detail:
Created Date:  2010-07-23     Completed Date:  2010-11-02     Revised Date:  2011-04-19    
Medline Journal Info:
Nlm Unique ID:  7503051     Medline TA:  J Acoust Soc Am     Country:  United States    
Other Details:
Languages:  eng     Pagination:  EL49-55     Citation Subset:  IM    
Affiliation:
Division of Communication and Auditory Neuroscience, House Ear Institute, 2100 W Third Street, Los Angeles, California 90057, USA. cabdala@hei.org
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MeSH Terms
Descriptor/Qualifier:
Acoustic Stimulation
Adult
Age Factors
Amplifiers, Electronic
Calibration
Equipment Design
Evoked Potentials, Auditory, Brain Stem
Female
Hearing Loss / diagnosis*,  physiopathology
Hearing Tests / instrumentation*,  standards
Humans
Infant, Newborn
Los Angeles
Male
Neonatal Screening / instrumentation*,  standards
Otoacoustic Emissions, Spontaneous*
Predictive Value of Tests
Reproducibility of Results
Signal Processing, Computer-Assisted
Grant Support
ID/Acronym/Agency:
R01 DC003552/DC/NIDCD NIH HHS; R01 DC003552-11/DC/NIDCD NIH HHS
Comments/Corrections

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