نتایج جستجو برای: stem response abr

تعداد نتایج: 1229433  

Journal: :The journal of international advanced otology 2016
Onur Çelik Görkem Eskiizmir Uzdan Uz

OBJECTIVE The goal of this study was to assess the effectiveness of auditory steady-state response (ASSR), determine the cut-off values for each frequency, and detect the best correlated frequencies when compared with the auditory brainstem response (ABR) thresholds in term babies under the age of 12 months. MATERIALS AND METHODS In total, 88 term babies with a mean age of 2.98 (1-11) months ...

2017
Raymond van de Berg Florence Lucieer Nils Guinand Joost van Tongeren Erwin George Jean-Philippe Guyot Herman Kingma Marc van Hoof Yasin Temel Jacobus van Overbeeke Angelica Perez-Fornos Robert Stokroos

OBJECTIVE The vestibular implant seems feasible as a clinically useful device in the near future. However, hearing preservation during intralabyrinthine implantation remains a challenge. It should be preserved to be able to treat patients with bilateral vestibulopathy and (partially) intact hearing. This case study investigated the feasibility of hearing preservation during the acute phase afte...

Journal: :The Journal of the Acoustical Society of America 2002
Elizabeth F Brittan-Powell Robert J Dooling Otto Gleich

The auditory brainstem response (ABR) was recorded in adult budgerigars (Melopsittacus undulatus) in response to clicks and tones. The typical budgerigar ABR waveform showed two prominent peaks occurring within 4 ms of the stimulus onset. As sound-pressure levels increased, ABR peak latency decreased, and peak amplitude increased for all waves while interwave interval remained relatively consta...

2013
Kaushlendra Kumar Jayashree S. Bhat Pearl Edna D’Costa Manav Srivastava Mohan Kumar Kalaiah

The aim of the present study was to investigate the effect of stimulus polarity on speech evoked auditory brainstem response (ABR). In order to accomplish it, speech evoked ABR was recorded with various stimulus polarities from 17 normally hearing adults. The result of the study shows differential effect of stimulus polarity on components of speech evoked ABR. Latency of peaks for onset, sustai...

Journal: :Archives of otolaryngology--head & neck surgery 2004
Jill B Firszt Wolfgang Gaggl Christina L Runge-Samuelson Linda S Burg P Ashley Wackym

OBJECTIVE To determine the effectiveness of auditory steady-state response (ASSR) as a measure of hearing sensitivity in young children suspect for significant hearing loss. DESIGN Within-subject comparisons of click auditory brainstem response (ABR) thresholds and ASSR thresholds. SUBJECTS The study population comprised 42 children suspect for hearing loss and subsequently referred for hea...

ژورنال: دانشور پزشکی 2008
اکبری, مهدی , خوانین, دکتر علی , فتح‌الهی, دکتر یعقوب , مرتضوی, دکتر سیدباقر , میرزایی, دکتر رمضان , کاظم‌نژاد, دکتر انوشیروان ,

  Introduction: In the present study, was performed to investigate the relationship between toluene(1000 ppm), noise, toluene and toluene along with noise (frequencies 250- 2000 Hz) per auditory Brain Stem response (ABR) on rabbits in which being exposed to this contaminants.   Materials & Methods: Three months old, male adult white New Zealand rabbits (1400-1700 g body weight) were used throug...

2016
Mukesh Sharma Sampan Singh Bist Santosh Kumar

BACKGROUND AND OBJECTIVES Auditory brainstem response (ABR) is a noninvasive measurement of a stimulus-locked, synchronous electrical event. ABR provides information concerning the functional integrity of brainstem nuclei. Age is a key factor in the interpretation of ABR peak latency among different age groups. Progressively with time it follows a "maturation pattern" during which latencies dec...

Journal: :The Journal of the Acoustical Society of America 2005
Elizabeth F Brittan-Powell Bernard Lohr D Caldwell Hahn Robert J Dooling

The auditory brainstem response (ABR), a measure of neural synchrony, was used to estimate auditory sensitivity in the eastern screech owl (Megascops asio). The typical screech owl ABR waveform showed two to three prominent peaks occurring within 5 ms of stimulus onset. As sound pressure levels increased, the ABR peak amplitude increased and latency decreased. With an increasing stimulus presen...

ژورنال: دانشور پزشکی 2008
اصیلیان, حسن , اکبری, مهدی , خوانین, علی , قدس, شیوا , نجفی, پروین , پیله‌وریان, علی‌اصغر ,

  Background: Increase in mobile phone users cause extensive consideration of researchers to biological effects of mobile phone waves. As the mobile set, is held near the ear and temporal lobe, and whereas distance of antenna from the inner ear is few centimeters, this study is the first research in our country to assess potential changes in auditory brain stem response of rabbit after exposure...

Journal: :Journal of neurophysiology 2013
Sei Eun Kim Karl Turkington Christopher Kushmerick Jun Hee Kim

Auditory brain stem circuits rely on fast, precise, and reliable neurotransmission to process auditory information. To determine the fundamental role of myelination in auditory brain stem function, we examined the evoked auditory brain stem response (ABR) from the Long Evans shaker (LES) rat, which lacks myelin due to a genetic deletion of myelin basic protein. In control rats, the ABR evoked b...

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