نتایج جستجو برای: auditory brain stem evoked response

تعداد نتایج: 1690198  

Journal: :International journal of psychophysiology : official journal of the International Organization of Psychophysiology 2001
C Başar-Eroglu T Demiralp M Schürmann E Başar

This report describes the frequency response of the oddball paradigm upon auditory stimuli. Other reports related to wavelet analysis of the same ERPs (Demiralp et al., 1999) and the application of visual signals (Schürmann et al., this volume) indicate that the P300 response has a dominant delta response oscillation, independent of the modality of the stimulation. Moreover, the adaptive digita...

Journal: :Journal of the American Academy of Audiology 1994
C R Mitchell S A Fausti R H Frey

In clinical testing using auditory evoked potentials, the practical length of a test session is limited. Thus, the amount of information that can be obtained during a routine test session is limited in electrocochleography and auditory brainstem testing. Attempts to obtain more information within a test session by increasing the stimulus repetition rate yields adapted responses. Multiple-stimul...

Journal: :Brazilian journal of otorhinolaryngology 2015
Sheila Jacques Oppitz Dayane Domeneghini Didoné Débora Durigon da Silva Marjana Gois Jordana Folgearini Geise Corrêa Ferreira Michele Vargas Garcia

INTRODUCTION Long-latency auditory evoked potentials represent the cortical activity related to attention, memory, and auditory discrimination skills. Acoustic signal processing occurs differently between verbal and nonverbal stimuli, influencing the latency and amplitude patterns. OBJECTIVE To describe the latencies of the cortical potentials P1, N1, P2, N2, and P3, as well as P3 amplitude, ...

2011
Michael Doellinger Martin Burger Ulrich Hoppe Enrico Bosco Ulrich Eysholdt

We examined the neural activation to consonant-vowel transitions by cortical auditory evoked potentials (AEPs). The aim was to show whether cortical response patterns to speech stimuli contain components due to one of the temporal features, the voice-onset time (VOT). In seven normal-hearing adults, the cortical responses to four different monosyllabic words were opposed to the cortical respons...

Journal: :Nihon Jibiinkoka Gakkai kaiho 1986
M Aoyagi

The current status of the application of the fast Fourier transform (FFT) for the auditory evoked response was summarised under for items of importance to the auditory brain stem response (ABR) as follows. (1) Digital filter: The most common way to use FFT, which facilitates quick isolation of fast and slow components from data of the same ABR wave. In addition, the proper setting of digital fi...

Journal: :British journal of anaesthesia 1995
D A Hett D C Smith S N Pilkington T R Abbott

We have recorded auditory evoked potentials before and during cardiopulmonary bypass in 10 adult patients undergoing cardiac surgery under moderate hypothermia to 27-28 degrees C. The immediate effect of bypass was a small decrease in latency and increase in amplitude of the early cortical response. We also studied two adults and two children during profound hypothermia with circulatory arrest ...

Journal: :Acta medica Iranica 2011
Mohammad Hossein Baradaranfar Saeid Atighechi Mohammad Hossein Dadgarnia Rozita Jafari Ghasem Karimi Abolfazl Mollasadeghi Zia Eslami Amin Baradarnfar

Hyperbilirubinemia at neonatal period is one of the major deteriorating factors of the auditory system. If left untreated, it may cause certain cerebral damage. This study aims to evaluate the impact of hyperbilirubinemia on the hearing of neonate. This study was conducted on 35 newborn babies with jaundice (bilirubin more than 20 mg/dL). Auditory brainstem response (ABR) and transient evoked o...

Journal: :Ear and hearing 2004
Winnie Y S Wong David R Stapells

OBJECTIVE The behavioral binaural masking level difference (BMLD) is believed to reflect brain stem processing. However, this conflicts with transient auditory evoked potential research that indicates the auditory brain stem and middle latency responses do not demonstrate the BMLD. The objective of the present study is to investigate the brain stem and cortical mechanisms underlying the BMLD in...

Journal: :Indian pediatrics 2006
S Arulprakash S P Verma V K Bhardwaj S S Mishra M Chansoria

Thirty two patients between 6 months and 14 years of age with tubercular meningitis were evaluated for brain stem auditory evoked response (BAER) and Visual evoked responses (VER), within 7 days of admission. Absolute latencies and interpeak latencies were compared with values obtained from normal children. BAER abnormality was found in 56.25% and VER in 28%children, respectively. BAER abnormal...

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