Comparison of group delays of 2f1−f2 distortion product otoacoustic emissions and cochlear travel times
نویسندگان
چکیده
منابع مشابه
Comparison of standard and abbreviated distortion product otoacoustic emissions procedures.
Standard and abbreviated distortion product otoacoustic emissions (DPOAEs) procedures derived using the Grason Stadler Model 60 instrument were compared. The standard and abbreviated procedures were compared at frequencies of 1000, 1250, 1593, 2000, 2531, and 3187 Hz for 48 ears from 28 subjects. The subject pool included individuals with normal hearing and those with sensorineural hearing loss...
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Tinnitus is a symptom that affects a great number of patients. Its diagnosis, treatment, and follow-up are difficult, owing to its subjectivity. The authors propose the use of distortion product otoacoustic emissions (DPOAEs) in tinnitus evaluation. They studied three groups: controls, having no complaint of tinnitus and normal hearing; group 1, presenting tinnitus and normal audiometry; and gr...
متن کاملGrowth of Distortion-product Otoacoustic Emissions in a Nonlinear, Active Model of Cochlear Mechanics
Evidence of compressive growth of basilar membrane displacement can be observed in measurements of DPOAE. When the levels of the two stimulus tones are related by the formula L1=0.4 L2+39, then the DPOAE I/O function resembles the classic Fletcher-Munson (1933) loudness function. In order to understand how the DPOAE I/O function relates to the perception of loudness, we need to also understand ...
متن کاملDiagnostics of the cochlear amplifier by means of distortion product otoacoustic emissions.
Distortion product otoacoustic emission (DPOAE) growth functions reflect the active nonlinear cochlear sound processing when using a primary-tone setting which accounts for the different compressions of the two primaries at the DPOAE generation site and hence provide a measure for objectively assessing cochlear sensitivity and compression. DPOAE thresholds can be derived from extrapolated DPOAE...
متن کاملCochlear nonlinearity in normal-hearing subjects as inferred psychophysically and from distortion-product otoacoustic emissions.
The aim was to investigate the correlation between compression exponent, compression threshold, and cochlear gain for normal-hearing subjects as inferred from temporal masking curves (TMCs) and distortion-product otoacoustic emission (DPOAEs) input-output (I/O) curves. Care was given to reduce the influence of DPOAE fine structure on the DPOAE I/O curves. A high correlation between compression ...
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ژورنال
عنوان ژورنال: Acoustics Research Letters Online
سال: 2004
ISSN: 1529-7853
DOI: 10.1121/1.1771711