OBJECTIVE Nonorganic hearing loss (NOHL) is a lack of consistency in audiological testing. Although NOHL is relatively rare, it is important to identify suspicious patients. This study was designed to evaluate the effectiveness of Stenger test and acoustic reflexes test (ART) in the evaluation of patients with suspicious of unilateral NOHL. STUDY DESIGN A prospective study Methods: In this st...

INTRODUCTION Chronic kidney disease (CKD) is defined as the presence of renal injury that leads to the slow and progressive loss of kidney function. AIM To compare audiological tests between patients with CKD receiving different types of treatment. MATERIAL AND METHOD This was a clinical and experimental study. Groups were divided according to treatment: hemodialysis (n = 35), peritoneal di...

Sound localization along the azimuth depends on the sensitivity of binaural nuclei in the auditory brainstem to small differences in interaural level and timing occurring within a submillisecond epoch and on monaural pathways that transmit level and timing cues with high temporal fidelity to insure their coincident arrival at the binaural targets. The soma and axons of these brainstem neurons a...

PURPOSE To correlate the findings of an open-field audiometry with the thresholds of steady-state auditory-evoked potentials (SSAEPs) found in infants of up to 6 months of age with sensorineural hearing loss. METHODS This study included 19 infants with sensorineural hearing loss (8 males and 11 females), with minimum age of 2 months and maximum age of 6 months. The SSAEPs were assessed at 500...

INTRODUCTION The objective of this study was to measure gender-related changes of otoacoustic emissions level in subjects with normal hearing in tonal audiometry. MATERIAL AND METHODS Click evoked otoacoustic emissions (CEOAEs) and distortion-product otoacoustic emissions (DPOAEs) were recorded in 146 (n = 292 ears) subjects. Otoacoustic emissions were recorded in response to nonlinear clicks...

introduction: to identify changes in oaes parameters in treatment course of idiopathic sudden sensorineural hearing loss (issnhl). materials and methods: in aprospective studyfromaugust 2005 to january 2009, 26 patients with issnhl underwent conventional audiometry/tympanometry and two types of oaes (teoaes and dpoaes) before and after the completion of standard drug therapy.the changes in pre-...

INTRODUCTION The objective of this study was to measure age-related changes of otoacoustic emissions level in subjects with normal hearing in tonal audiometry. MATERIAL AND METHODS Click evoked otoacoustic emissions (CEOAEs) and distortion-product otoacoustic emissions (DPOAEs) were recorded in 146 (n = 292 ears) subjects. Otoacoustic emissions were recorded in response to nonlinear clicks an...

This article considers the efficiency of evoked potential audiometry using steady-state responses evoked by multiple simultaneous stimuli with carrier frequencies at 500, 1000, 2000, and 4000 Hz. The general principles of signal-to-noise enhancement through averaging provide a basis for determining the time required to estimate thresholds. The advantage of the multiple-stimulus technique over a...