INTRODUCTION Neural encoding of speech begins with the analysis of the signal as a whole broken down into its sinusoidal components in the cochlea, which has to be conserved up to the higher auditory centers. Some of these components target the dead regions of the cochlea causing little or no excitation. Measuring aided speech-evoked auditory brainstem response elicited by speech stimuli with d...

Aim:Our study aims at evaluate auditory dysfunction in patients with diabetes mellitus aged above 50 years as compared to non-diabetic patient,it’s relationshipwith the duration of diabetes and HbA1c levels and to evaluatethe central auditory pathway involvement in diabetic patients by Brainstem Evoked response audiometry(BERA). Materials And Methods: A cross sectional, comparative clinical stu...

OBJECTIVE To report the case of an adult patient who developed auditory complaints following xylene exposure, and to review the literature on the effects of solvent exposure on hearing. CASE REPORT The patient presented with a gradual deterioration in his ability to hear in difficult acoustic environments and also to hear complex sounds such as music, over a 40-year period. His symptoms began...

Introduction: Hearing loss is one of the most common problems in elderly people. Functional side effects of hearing loss are various. Due to the fact that hearing loss is the common impairment in elderly people; the importance of its possible effects on auditory memory is undeniable. This study aims to focus on the hearing loss effects on auditory memory.   Materials and Methods: Dichotic Audi...

OBJECTIVES To investigate the validity of newborn hearing screening protocol using automated auditory brainstem response (AABR) with a confirmation method using click auditory brainstem response (ABR) and to evaluate changes in hearing status of infants with confirmed congenital hearing loss. METHODS Neonates in the well-baby nursery were screened by staged AABR. Subjects whose final AABR res...

CONTEXT The importance of brainstem auditory evoked potential monitoring in reducing hearing loss during microvascular decompression for trigeminal neuralgia is now accepted. However the extent of the changes in the pattern of these potentials and the safe limits to which these changes are relevant in reducing postoperative hearing loss have not been established. AIMS The aim of this study is...

Functional inhibitory synapses form in auditory cortex well before the onset of normal hearing. However, their properties change dramatically during normal development, and many of these maturational events are delayed by hearing loss. Here, we review recent findings on the developmental plasticity of inhibitory synapse strength, kinetics, and GABAA receptor localization in auditory cortex. Alt...

Background and Objective: Early detection of neonatal hearing disorders is a suitable measure of speech and behavioral development. The aim of this study was to determine the prevalence of hearing disorder in high-risk neonates treated in a neonatal intensive care unit (NICU).  Materials and Methods: This descriptive study was performed on 150 neonates treated in the NICU of Besat Hospital in ...

Cochlear hair cells convert sound vibration into electrical potential, and loss of these cells diminishes auditory function. In response to mechanical stimuli, piezoelectric materials generate electricity, suggesting that they could be used in place of hair cells to create an artificial cochlear epithelium. Here, we report that a piezoelectric membrane generated electrical potentials in respons...

Carpenter syndrome (Acrocephalopolysyndactyly type II), first described in 1901, consists of acrocephaly, syndactyly, polydactyly, congenital heart disease, mental retardation, hypogenitalism, cryptorchidism, obesity, umbilical hernia and bony abnormalities. We report a 6 years old boy presenting as a union of these malformations and also having bilateral sensorineural hearing loss. Auditory di...