distortion-product otoacoustic emission

distortion-product otoacoustic emission (DPOAE),

a form of evoked otoacoustic emission in which a third frequency is produced when two pure tones are used as the stimulus.

dis·tor·tion-prod·uct o·to·a·cous·tic e·mis·sion

(dis-tōr'shŭn prod'ŭkt ō'tō-ă-kū'stik ē-mish'ŭn)
A form of evoked otoacoustic emission in which a third frequency is produced when two pure tones are used as the stimulus.
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Abbreviations: AAA = American Academy of Audiology, ANSI = American National Standards Institute, ASHA = American Speech-Language-Hearing Association, AUC = area under the Receiver Operating Characteristic curve, COMP-VA = comprehensive ototoxicity monitoring program for Department of Veterans Affairs, DPOAE = distortion-product otoacoustic emission, HIPAA = Health Insurance Portability and Accountability Act of 1996, I/O = input-output, MPANL = maximum permissible ambient noise level, NCRAR = National Center for Rehabilitative Auditory Research, RR&D = Rehabilitation Research and Development, SPL = sound pressure level, SRO = sensitive range for ototoxicity, TOMI = Tinnitus Ototoxicity Monitoring Interview, VA = Department of Veterans Affairs, VAMC = VA medical center.
Distortion-product otoacoustic emission test performance for ototoxicity monitoring.
At lower frequencies, distortion-product otoacoustic emission amplitudes were found to be significantly above the noise floor in five of the 11 patients whose hearing thresholds were 60 dB HL or worse by click auditory brainstem response testing.
Evidence fortwo discrete sources of 2f1-f2 distortion-product otoacoustic emission in rabbit: I.
We evaluated the ototoxic effect of aminoglycosides on the outer hair cells of newborns in a neonatal intensive care unit (NICU) by means of distortion-product otoacoustic emissions (DPOAE) testing.
Topics include the basics and science behind the field of otoacoustic emissions; the anatomy, physiology, and molecular basis of cochlear function, studies of populations with normal hearing sensitivity; studies of clinical populations, including a new article of the influence of middle-ear function and pathology and otoacoustic emissions; distortion-product otoacoustic emissions in relation to hearing loss; audiometric outcomes across cochlear and retrocochlear pathology; integrating measures as the basis for differential diagnostic applications; suppression of otoacoustic emissions in clinical and other populations; otoacoustic studies as indicators of noise-induced hearing loss; neonatal hearing screening and otoacoustic emission analysis in children.
Distortion-product otoacoustic emissions testing showed less of a response on the left (figure 1).
Otoacoustic emissions testing showed a lesser range of the distortion-product otoacoustic emissions in the right ear.
While the tinnitus did not localize to one ear or one side of the head, three findings point to a predominantly right-sided lesion: speech discrimination in noise, the results of ABB electronystagmography, and the distortion-product otoacoustic emissions.
Ozturan and Lam studied 15 patients and 10 controls and compared pure-tone audiometry and distortion-product otoacoustic emissions (DPOAE) measurements before and after hemodialysis.
Distortion-product otoacoustic emissions were present in both ears, and less robust on the left.