نتایج جستجو برای: oaes
تعداد نتایج: 196 فیلتر نتایج به سال:
Transient-evoked (TEOAE) and distortion-product otoacoustic emissions (DPOAE) were measured in 51 graduates of an intensive care nursery and compared to data obtained from 80 normal-hearing children and adults. All infants had click-evoked auditory brainstem responses (ABR) at 30 dB nHL or less while the older subjects had pure-tone thresholds of 20 dB HL or less for octave frequencies from 250...
Cochlear synaptopathy can result from various insults, including acoustic trauma, aging, ototoxicity, or chronic conductive hearing loss. For example, moderate noise exposure in mice can destroy up to ∼50% of synapses between auditory nerve fibers (ANFs) and inner hair cells (IHCs) without affecting outer hair cells (OHCs) or thresholds, because the synaptopathy occurs first in high-threshold A...
Lower Jurassic sedimentary successions in the Atlantic margin basins include several organic-rich intervals, some with source rock potential; time-equivalent units are also identified on- and offshore areas worldwide. Despite decades of research, it is still unclear which mechanisms lead to deposition sediments during Early Jurassic. The objectives this study construct a detailed temporal geogr...
OBJECTIVES To develop normative data for wideband middle-ear reflectance in a newborn hearing-screening population and to compare test performance with 1-kHz tympanometry for prediction of otoacoustic emission (OAE) screening outcome. DESIGN Wideband middle-ear reflectance (using both tone and chirp stimuli from 0.2 to 6 kHz), 1-kHz tympanometry, and distortion-product (DP) OAEs were measured...
Background: Tone-burst otoacoustic emissions (TBOAEs) have not been routinely studied in pediatric populations, although tone burst stimuli have greater frequency specificity compared with click sound stimuli. The present study aimed (1) to determine an appropriate stimulus level for neonatal TBOAE measurements when the stimulus center frequency was 1 kHz, (2) to explore the characteristics of ...
We are pleased to welcome you to the eighth annual Auditory Cognition, Perception, and Action Meeting (APCAM). The goal of APCAM is to bring together researchers from various theoretical perspectives to present focused research on auditory cognition, perception, and aurally guided action. APCAM is a unique meeting in its exclusive focus on the perceptual, cognitive, and behavioral aspects of au...
OBJECTIVES Otoacoustic emission (OAE) testing is now a standard component of the diagnostic audiology protocol for infants and toddlers and is an excellent tool for detecting moderate-to-profound cochlear hearing loss. Detection of hearing loss is especially important in infants and toddlers. Unfortunately, middle-ear dysfunction has a high incidence in this age range and can confound interpret...
The relationship between diabetes mellitus (DM) and hypoacusia has been discussed since the work of Jordao, in 1857. Type II diabetes was considered a prevalent age-related medical condition, resulting in subclinical pathological changes. It was estimated that the incidence is about 9.6% of people in USA. (Cowie et al. 2006). Some studies has shown that the magnitude of hearing loss in patients...
BACKGROUND The interference between the incoming sound wave and the acoustic energy reflected by the tympanic membrane (TM) forms a standing wave in human ear canals. The existence of standing waves causes various problems when measuring otoacoustic emissions (OAEs) that are soft sounds closely related with the functional status of the inner ear. The purpose of this study was to propose an in-s...
When screening infants for hearing loss using otoacoustic emissions (OAEs), a single pass/refer criterion must be established that will minimize referrals of babies with normal hearing (false positives), yet maximize the likelihood that babies with actual hearing loss will be identified (test sensitivity). How to establish this criterion, and the test specificity and sensitivity corresponding t...
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