BACKGROUND There is a need to determine parameters for the analyses of the distortion product otoacoustic emissions (DPOAE) of infants so that it can be used as a clinical criterion in auditory assessment. AIM To describe the DPOAE records of infants from birth to two months, considering the response level, noise level and the signal to noise ratio in all frequencies; the analysis of response...

DOI: 10.4328/JCAM.1250 Received: 11.08.2012 Accepted: 26.08.2012 Printed: 01.03.2014 J Clin Anal Med 2014;5(2): 97-102 Corresponding Author: Salih Bakır, Department of Otolaryngology, Dicle University Medical College and MD, Department of Physiology, Dicle University Medical College 21280, Diyarbakir, Turkey. T.: +90 4122488001/4492 F.: +90 4122488440 E-Mail: [email protected] Özet Amaç: H...

BACKGROUND Noise-induced hearing loss (NIHL) is one of the most common occupational illnesses. Most of the studies on NIHL were conducted at high noise levels that people are rarely exposed to but in industries. The function of the outer hair cells (OHCs) is impaired after exposure to industrial noise. Distortion product otoacoustic emissions (DPOAEs) are useful in examination of noise-induced ...

Sensitive response to low frequency cochlear distortion products in the auditory midbrain. Abstract During auditory stimulation with several frequency components, distortion products (DP) are generated as byproduct of nonlinear cochlear amplification. After generated DP energy is 20 reemitted into the ear channel where it can be measured as distortion product otoacoustic emission (DPOAE) and it...

Hearing loss is common in school-age individuals with Williams syndrome (WS) and extensive in adults. Prior studies with relatively small sample sizes suggest that hearing loss in WS has an early onset and may be progressive, yet the auditory phenotype and the scope of the hearing loss have not been adequately characterized. We used standard audiometric tools: Otoscopy, tympanometry, air-conduc...

Short-term tinnitus develops shortly after the administration of a high dose of salicylate. Since salicylate selectively potentiates N-methyl- D-aspartate (NMDA) currents in spiral ganglion neurons, it may play a vital role in tinnitus by amplifying NMDA-mediated neurotransmission. The aim of this study was to determine whether systemic treatment with a NMDA channel blocker, memantine, could pr...

LONGITUDINAL OUTCOMES OF DISTORTION PRODUCT OTOACOUSTICEMISSIONS AND WIDEBAND REFLECTANCE IN INFANTSbyVIRGINIA RAMACHANDRANDecember 2012Co-Advisors: Dr. Jean E. Andruski and Dr. Kenneth R. BouchardMajor: Communication Sciences and DisordersDegree: Doctor of PhilosophyClinical practice has shown that some infants are born with, or develop atemporary conduc...