One of the most important applications of the Brainstem evoked response audiometry (ABR) is in the evaluation of hearing loss in children. Today the ABR is also indicated in the screening of cochleo-vestibular syndromes to detect retrocochlear lesions, to monitor patients in a coma (brain death), in monitoring the brainstem during skull base surgery, etc. Among the many BERA qualities, is its c...

The slow wave (SW) component of the auditory brainstem response (ABR) was recorded in eight young adult subjects of both genders who had normal hearing sensitivity and who exhibited normal behavioral temporal integration (TI) functions. Test stimuli were 500- and 2000-Hz tone bursts, with rise and decay ramps of two periods, ranging in total duration from 2.5 msec to 44 msec. The responses appe...

A rate-based congestion control algorithm has been developed and standardized in the ATM forum for ABR service class. Even though the performance of the rate-based congestion control algorithm heavily depends on the selection of those control parameters, the selection method of parameters is not shown in the standard. In this paper, by extending our previous work, appropriate settings of rate-c...

There are few systematic comparisons of Etymotic ER-3A insert earphones versus supra-aural earphones in auditory brainstem response (ABR) measurement. We compared ER-3A insert earphones and two types of supra-aural earphones (TDH-39P and TDH-49P) in a group of normal hearing adults. Acoustic analyses revealed spectral and temporal differences among earphones. Behavioral and ABR thresholds to cl...

Topographies of speech auditory brainstem response (speech ABR), a fine electrophysiological marker of speech encoding, have never been described. Yet, they could provide useful information to assess speech ABR generators and better characterize populations of interest (e.g., musicians, dyslexics). We present here a novel methodology of topographic speech ABR recording, using a 32-channel low s...

INTRODUCTION Cervical vestibular evoked myogenic potentials (cVEMP) can assess the integrity of the inferior vestibular nerve thereby promising to be a useful tool in the audiological test battery to diagnose vestibular schwannoma. OBJECTIVE To ascertain the utility of cVEMP in diagnosis of vestibular schwannoma in conjunction with the ABR and to evaluate whether the size of lesion has any ef...

Micro-pulse lidar (MPL) measurements have been widely used in atmospheric research over the past few decades. However, MPL afterpulse noise has a large impact on aerosol measurement middle and upper troposphere, an effective correction method is still lacking. Here, new approach presented by using with low-level optically thick clouds to act as lids blocking signals beyond completely. Examples ...

Apresenta o fasciculo v.10, n.1 de jan./abr. 2021 da Revista AtoZ.

Entrevista para a Revista Maracanan, n. 26 - "História Regional: novas perspectivas", jan.-abr. 2021.

The present study provides comparative evaluation of the ABR and MLR to 1 kHz brief tones in two groups of hearing-impaired subjects (noise-masked normally-hearing; and sensorineurally hearing-impaired adults), as well as a normally-hearing control group. Tones were presented at intensities from threshold to 80 /90 dB nHL. The results of this study show that: (1) the ABR and MLR to these low-fr...