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Showing 1 to 20 of 24 for “"DPOAE"”.

  1. A distortion product otoacoustic emissions (DPOAE) assessment of cochlear function in tinnitus subjects with normal hearing sensitivity

    Acker, Leah C. (Leah Christine)Massachusetts Institute of Technology2009

    … used distortion product otoacoustic emissions (DPOAEs) to evaluate the cochlear amplifier of 13 tinnitus subjects and 13 non-tinnitus subjects (matched by age, sex, and audiogram) across a broad range of frequencies and intensities. DPOAE magnitudes were measured for at least 52 frequencies (500 …

    mit Repository record

  2. Fine structure in distortion product otoacoustic emissions and auditory perception

    Mauermann, Manfred DieterUniversität Oldenburg

    … of distortion-product-otoacoustic-emission (DPOAE) generation and so to increase the value of DPOAE measurements as a diagnostic tool. In chapter 2+3 the results from experiments and modeling of properties of DPOAE-fine structure in normal hearing and hearing impaired subjects give strong …

    oldenburg Repository record

  3. Longitudinal outcomes of distortion product otoacoustic emissions and wideband reflectance in infants

    Ramachandran, Virginia2012

    … to describe outcomes of distortion product OAE (DPOAE) screening in infants at birth, and one, four, eight, and twelve weeks of age. In addition, wideband reflectance (WBR) measures, which have the potential to help characterize outer-ear canal and middle-ear function, were examined to determine …

    wayne-thes Repository record

  4. Investigation of acquired hearing loss in dopamine beta hydroxylase (DBH)-mutant mice

    Lee, Suh-KyungMassachusetts Institute of Technology2011

    … and distortion-product otoacoustic emission (DPOAE) thresholds, as well as sound-induced umbo velocity, and used standard histological techniques to study normal and pathological middle-ear anatomy. Anatomical analyses included observation of tympanic membrane and ossicular structures, …

    mit Repository record

  5. Modelling the cochlear origins of distortion product otoacoustic emissions

    Young, Jacqueline AnnUniversity of Southampton2011

    Distortion product otoacoustic emissions (DPOAEs) arise within the cochlea in response to two<br/>stimulus tones (f1 and f2) at frequencies such as 2f1 ? f2 and 2f2 ? f1. Each DPOAE derives from two<br/>contributing mechanisms within the cochlea: a distributed distortion source and a reflection …

    soton Repository record

  6. Otoacoustic emission (OAE)-based measurement of the functioning of the human cochlea and the efferent auditory system

    Mishra, Srikanta KumarUniversity of Southampton2010

    … that distortion product otoacoustic emissions (DPOAE) are<br/>composed of two separate components, named wave- and place-fixed emissions. They not only arise from two different cochlear locations but also from two fundamentally different processes. Wave-fixed components arise from distortion …

    soton Repository record

  7. Using otoacoustic emissions to evaluate efferent auditory function in humans

    Henin, SimonThe Graduate School and University Center of The City University of New York2014

    … of distortion product otoacoustic emissions (DPOAEs) when evaluating efferent function using contralateral acoustic stimulation (CAS). CAS-induced activation of the medial olivocochlear reflex (MOCR) was found to produce both reductions and enhancements of total DPOAE level. Analysis of the …

    cuny-grad Repository record

  8. The Audiometric Profile of Young Adults Who Report Difficulty with Speech Perception in Noise

    Higgins, Michael RThe Graduate School and University Center of The City University of New York2015

    … distortion product otoacoustic emissions (DPOAEs), and auditory brainstem responses (ABR) in 13 participants (5 with reported difficulty in noise & 8 controls). Participants who reported difficulty in noise rated their speech perception in noise performance as poorer on the SSQ, performed …

    cuny-grad Repository record

  9. The psychophysical and physiological assessment of cochlear-origin tinnitus

    Park, Yul YoungUniversity of Texas at Austin2004

    … of the Distortion Product Otoacoustic Emission(DPOAE) level, Input/Output slope, and tinnitus handicap questionnaire scores indicated a possible measure of tinnitus severity, and the further statistical data analysis is required to confirm its effectiveness based on more rigorous subject …

    texas Repository record

  10. Mutation of SLC7A14 Causes Syndromic Hearing Loss

    Giffen, KimberleeCreighton University2020

    … distortion product otoacoustic emission (DPOAE) measurements showed normal OHC function in wildtype and knockout mice. To confirm syndromic disease, alteration in auditory functions were examined in knockin mice with the missense mutation SLC7A14-p.(Gly330Arg). ABR thresholds, but not …

    creighton Repository record

  11. Hear Today, Gone Tomorrow: Exploring Quinoxaline Derivatives as a Treatment for Noise-Induced Hearing Loss

    Barbush, Lauren Alexis MarieCreighton University2024

    … (ABR), distortion product otoacoustic emissions (DPOAE), and morphological analysis. The derivatives’ bioavailability was assessed using an in silico ADME assay from SwissADME. A kinome activity assay was performed on organs of Corti to assess changes in kinase activity following noise exposure. …

    creighton Repository record

  12. Slow modulation of cochlear response by the olivocochlear efferent system elicited by sustained noise or threshold elevation in the contralateral ear

    Larsen, Erik, Ph. D. Massachusetts Institute of TechnologyMassachusetts Institute of Technology2008

    … distortion product otoacoustic emissions (DPOAEs), compound action potentials (CAPs), and round window noise. In contrast to the MOC slow effect, which has been reported for sustained shockevoked MOC activity, MOC delayed suppression does not build up in the outer hair cells but is due to a …

    mit Repository record

  13. Interactive effects of developmental PCB exposure and relevant environmental risks on the auditory system

    Poon, EmilyUniversity of Illinois at Urbana-Champaign2012

    … distortion product otoacoustic emissions (DPOAEs). DPOAE amplitudes were decreased and thresholds were elevated in the 6 mg/kg PCB group. Exposure to PBDEs alone did not cause DPOAE deficits. Importantly, there was an interactive effect from combined exposure such that the individual low …

    uiuc Repository record

  14. Distortion product otoacoustic emissions: towards reliable and valid early identification and monitoring of hearing in adults receiving ototoxic medication

    Petersen, LucretiaDepartment of Health and Rehabilitation Sciences2023

    … state. Distortion product otoacoustic emissions (DPOAEs) at 2f1-f2 are a viable option, as it evaluates cochlear function, specifically the outer hair cells, which are affected first by ototoxic medication. Method: This thesis used a sequential study design aimed to determine the DPOAE stimulus …

    cape-town Repository record

  15. Auditory characteristics and balance function of diabetic patients

    Hlayisi, Vera-GeneveyDivision of Communication Sciences and Disorders2017

    … distortion product otoacoustic emissions (DPOAE), vision screening, peripheral neuropathy screening, Dynamic Gait Index test (DGI) and the Modified Clinical Test of Sensory Integration (MCTSIB). Data were analyzed using both descriptive and inferential statistical tests. Results. A total of …

    cape-town Repository record

  16. A Comparison of Commercially Available Otoacoustic Emission Newborn Hearing Screening Devices

    Lanois, Jaime

    … were distortion product otoacoustic emission (DPOAE) devices and two were transient evoked otoacoustic emission (TEOAE) devices. The AuDX, the GSI 70, and the EchoScreen are all automated pass/fail hearing screeners and were compared to the ILO 88, which is non-automated. The devices chosen are …

    mo-state Repository record

  17. Objective Measures of Tinnitus in Humans

    Melamed, Sarah BethUniversity of Illinois at Urbana-Champaign2015

    … used. Distortion product otoacoustic emission (DPOAE) input/output functions were calculated to assess cochlear function, contralateral suppression of reflectance-based stimulus frequency otoacoustic emissions was calculated to assess central auditory efferent function, and the auditory middle …

    uiuc Repository record

  18. Responses from electric stimulation of cochlear nucleus

    Suzuki, Ryuji, Ph. D. Massachusetts Institute of TechnologyMassachusetts Institute of Technology2010

    … on distortion product otoacoustic emission (DPOAE). The MOC reflex was activated bilaterally by stimulating PVCN or AVCN shell, but not AVCN core. These results suggest that there are two groups of MOC interneurons in specific parts of CN.

    mit Repository record

  19. Early identification and monitoring of cochlear damage using extended high-frequency audiometry : a systematic review

    University of Pretoria2021

    … or distortion product otoacoustic emission (DPOAE) testing (two studies – 12.5%), or both methods (one study – 6.25%). Comparing EHF audiometry to conventional audiometry and DPOAE testing, the majority of the studies included in the systematic review (10 studies - 62.5%) found that EHF …

    pretoria Repository record

  20. An in vivo study of GTF2IRD1 function and its contribution to the physical features of Williams Beuren Syndrome

    Canales Martinez, CesarUNSW, Sydney2015

    … the distortion product of otoacoustic emissions (DPOAE). The role of GTF2IRD1 in the development of facial skin was examined by a detailed investigation of the control of epidermal proliferation, differentiation and barrier function, followed by an RNA-Seq analysis, to identify the molecular …

    unsw Repository record

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