Contribution of various frequency bands to ABR in dolphins.

abstract：:This study introduces and evaluates a method for measurement of the longitudinal spread of electrically evoked neural excitation in the cochlea, using the Neural Response Telemetry system (NRT) available with the Nucleus((R)) 24 cochlear implant system. The recently released version of the NRT software (version 3.0) e...

journal_title：Hearing research

authors： Cohen LT,Richardson LM,Saunders E,Cowan RS

更新日期：2003-05-01 00:00:00

abstract：:Although speech understanding is highly variable amongst cochlear implants (CIs) subjects, the remarkably high speech recognition performance of many CI users is unexpected and not well understood. Numerous factors, including neural health and degradation of the spectral information in the speech signal of CIs, likely...

journal_title：Hearing research

authors： Zheng Y,Escabí M,Litovsky RY

更新日期：2017-08-01 00:00:00

abstract：:Guinea pigs were exposed to a 10 kHz pure tone and damage to the cochlea was investigated immediately after exposure, or after a recovery period ranging from 18-25 days. Structural damage was assessed using scanning electron microscopy and functional damage estimated using the N1 threshold audiogram. Exposure at 106 d...

journal_title：Hearing research

authors： Robertson D,Johnstone BM,McGill TJ

更新日期：1980-01-01 00:00:00

abstract：:The f2-f1 distortion product otoacoustic emission (DPOAE) can be observed to undergo gradual alterations in amplitude during continuous ipsilateral stimulation with primary tones. In the present experiments, we characterized the dependence of these amplitude alterations on several stimulus variables (intensity, durati...

journal_title：Hearing research

authors： Kujawa SG,Fallon M,Bobbin RP

更新日期：1995-05-01 00:00:00

abstract：:Carboplatin preferentially destroys inner hair cells (IHCs) in the chinchilla inner ear, while retaining a near-normal outer hair cell (OHC) population. The present study investigated the functional consequences of IHC loss on the compound action potential (CAP), inferior colliculus potential (ICP) and auditory cortex...

journal_title：Hearing research

authors： Qiu C,Salvi R,Ding D,Burkard R

更新日期：2000-01-01 00:00:00

abstract：:The distribution of calcitonin gene-related peptide immunoreactivity (CGRPi) within efferent vestibular neurons in the chinchilla was investigated using fluorescent retrograde labeling combined with immunohistochemistry. Efferent vestibular neurons were found bilaterally in clusters: dorsolateral (group E1) and medial...

journal_title：Hearing research

authors： Marco RA,Hoffman LF,Wackym PA,Micevych PE,Popper P

更新日期：1996-08-01 00:00:00

abstract：:The responses to two identical, consecutive pure tone stimuli with varying inter-stimulus intervals (delta ts) were measured for 89 neurons in the cochlear nucleus of the anaesthetised guinea pig. We observed two main effects; either a decrease (suppression) or an increase (facilitation) in response to the second tone...

journal_title：Hearing research

authors： Bleeck S,Sayles M,Ingham NJ,Winter IM

更新日期：2006-02-01 00:00:00

abstract：:Songbirds spend much of their time learning, producing, and listening to complex vocal sequences we call songs. Songs are learned via cultural transmission, and singing, usually by males, has a strong impact on the behavioral state of the listeners, often promoting affiliation, pair bonding, or aggression. What is it ...

journal_title：Hearing research

authors： Rothenberg D,Roeske TC,Voss HU,Naguib M,Tchernichovski O

更新日期：2014-02-01 00:00:00

abstract：:Diffusion tensor imaging (DTI) is a contemporary neuroimaging modality used to study connectivity patterns and microstructure of white matter tracts in the brain. The use of DTI in the study of tinnitus is a relatively unexplored methodology with no studies focusing specifically on tinnitus induced by noise exposure. ...

journal_title：Hearing research

authors： Benson RR,Gattu R,Cacace AT

更新日期：2014-03-01 00:00:00

abstract：:Single-unit recordings from neurons in the torus semicircularis of Rana ridibunda were analyzed to determine the degree to which these neurons can detect acoustic stimuli superimposed on continuous, broad-band noise. In the first series of trials the stimuli were tone pulses 25 ms long, 5 dB above threshold, and at th...

journal_title：Hearing research

authors： Joermann G

更新日期：1988-09-15 00:00:00

abstract：:Uncoupling proteins (UCPs) are a proton transporter family located in the mitochondrial inner membrane. The molecular expression and activity of UCPs in brown adipose tissue and skeletal muscle are regulated by factors as diverse as chronic overeating and cold exposure, suggesting roles in energy expenditure and heat ...

journal_title：Hearing research

authors： Kitahara T,Li HS,Balaban CD

更新日期：2004-10-01 00:00:00

abstract：:There is evidence that pentobarbital, a commonly used anesthetic, can affect neuronal activity, but its effects on particular neurons of the dorsal cochlear nucleus (DCN) are not well known. Bursting (complex spiking) spontaneous activity has been observed in the DCN in brain slice preparations and in recordings from ...

journal_title：Hearing research

authors： Chen K,Godfrey DA

更新日期：2000-11-01 00:00:00

abstract：:It is still a matter of debate whether neurons in the higher central nervous system of anurans become progressively more sharply tuned to sounds that have a behavioral importance or that such coding is performed by (small) groups of neurons. The approach we have taken to investigate this matter comprises simultaneous ...

journal_title：Hearing research

authors： Eggermont JJ,Epping WJ

更新日期：1987-01-01 00:00:00

abstract：:An investigation of the effects of the level and bandwidth of the masking noise and of the effect of test-tone duration on binaural masking-level differences (BMLDs) has been carried out using the standard Békésy audiometric techniques. The BMLDs increase in magnitude with increasing masker level, reach a shallow maxi...

journal_title：Hearing research

authors： Henning GB,Zwicker E

更新日期：1984-05-01 00:00:00

abstract：:Thresholds for responses to tone bursts in the primary auditory field of pentobarbital-anesthetized rat are significantly lower for local field potentials (5.60 dB+/-1.76 S.E.M.) than for multiple unit discharges (17.80 dB+/-3.17), recorded simultaneously from the same microelectrode. The characteristic frequencies (C...

journal_title：Hearing research

authors： Galván VV,Chen J,Weinberger NM

更新日期：2002-05-01 00:00:00

abstract：:The auditory brainstem response (ABR) is an acoustically evoked potential commonly used to determine hearing sensitivity in laboratory animals. Both isoflurane and ketamine/xylazine anesthesia are commonly used to immobilize animals during ABR procedures. Hearing threshold determination is often the primary interest. ...

journal_title：Hearing research

authors： Ruebhausen MR,Brozoski TJ,Bauer CA

更新日期：2012-05-01 00:00:00

abstract：:Experiments on the flow-sensitive lateral line system of fishes have provided important insights into the function and sensory transduction of vertebrate hair cells. A common experimental approach has been to pharmacologically block lateral line hair cells and measure how behavior changes. Cobalt chloride (CoCl2) bloc...

journal_title：Hearing research

authors： Stewart WJ,Johansen JL,Liao JC

更新日期：2017-07-01 00:00:00

abstract：:Congenital hearing loss (HL) affects about 1 in every 500 infants. Among those affected more than half are caused by genetic mutations. According to the cellular sites affected by mutations in the cochlea, deafness genes could be classified into three major groups: those affecting the function of hair cells and synaps...

journal_title：Hearing research

authors： Zhang L,Wu X,Lin X

更新日期：2020-09-01 00:00:00

abstract：:Cochlear function and susceptibility to noise over-exposure were examined in the congenic mouse strain B6.CAST+Ahl (B6.CAST) and compared to these same features in the CAST/Ei (CAST) and C57BL/6J (C57) parental strains. For both types of comparisons, the primary measure was the distortion-product otoacoustic emissions...

journal_title：Hearing research

authors： Vázquez AE,Jimenez AM,Martin GK,Luebke AE,Lonsbury-Martin BL

更新日期：2004-08-01 00:00:00

abstract：:A model for cochlear mechanics is proposed to take account of its two systems, one passive and one active. The classical passive system stimulates the inner hair cells directly at levels above about 40 dB SL. At intensities below about 60 dB an active process, the 'cochlear amplifier' (CA), somehow provides additional...

journal_title：Hearing research

authors： Davis H

更新日期：1983-01-01 00:00:00

abstract：:There is accumulating evidence for a purinergic humoral system involved in the control of cochlear function. Evidence of specific P2 purinoceptors on cochlear tissues implies a role for extracellular adenosine triphosphate (ATP) in the cochlea. To further this hypothesis a study was undertaken to determine if there wa...

journal_title：Hearing research

authors： White PN,Thorne PR,Housley GD,Mockett B,Billett TE,Burnstock G

更新日期：1995-10-01 00:00:00

abstract：:The known structural and functional features of the inferior colliculus provided an advantageous substrate for examining the outcome of neural transplantation. In the present study, tissue from the midbrain tectum of Sprague-Dawley rat fetuses was removed at 15, 16 and 19 days of gestation (E15, E16 and E19), incubate...

journal_title：Hearing research

authors： Zrull MC,Coleman JR

更新日期：1990-05-01 00:00:00

abstract：:We performed transient evoked otoacoustic emission (TEOAE) measurements on 29 ears of myasthenia gravis (MG) patients. The purpose of the study was to support the role of acetylcholine (ACh) in the efferent innervation of cochlear outer hair cells (OHCs). Another aim was to establish additional diagnostic tools for th...

journal_title：Hearing research

authors： Tóth L,Rácz T,Diószeghy P,Répássy G,Lampé I

更新日期：1998-12-01 00:00:00

abstract：:In ears in which cochlear efferent pathways were cut and with testing done under anaesthetic conditions that preclude middle ear muscle activity (so as to examine the "intrinsic" effects of loud sound on the cochlea without any confounding effect of efferent pathways to the auditory periphery), atraumatic background w...

journal_title：Hearing research

authors： Rajan R

更新日期：2006-03-01 00:00:00

abstract：:Membrane-bound guanylyl cyclases (GCs) are peptide hormone receptors whereas the cytosolic isoforms are receptors for nitric oxide. In the inner ear, the membrane-bound GCs may be involved in the regulation of fluid homeostasis and the cytosolic forms possibly play a role in signal processing and regulation of local b...

journal_title：Hearing research

authors： Seebacher T,Beitz E,Kumagami H,Wild K,Ruppersberg JP,Schultz JE

更新日期：1999-01-01 00:00:00

abstract：:Certain characteristics of the extracellular cochlear microphonic (CM) recorded by intracochlear electrodes change in a bimodal manner as a function of prior acoustic exposure, intensity of stimulation, or stimulus frequency. In the present study, it is shown that biasing the basilar membrane position toward scala tym...

journal_title：Hearing research

authors： Pierson M,Møller A

更新日期：1980-03-01 00:00:00

abstract：:Until recently the responses of the mechanosensitive hair cells of the cochlea have been inferred from their morphology, morphological relationships with other structures in the cochlea, and by indirect electrophysiological measurements. With the advent of techniques for making intracellular recordings from hair cells...

journal_title：Hearing research

authors： Russell IJ,Cody AR,Richardson GP

更新日期：1986-01-01 00:00:00

abstract：:Expression of mineralocorticoid type I receptor (MR) gene in the rat cochlea was determined using molecular biological techniques. We synthesized complementary DNA (cDNA) from rat cochlear total RNA and then amplified MR cDNA fragments by polymerase chain reaction (PCR). The amplified cDNA fragments were subcloned int...

journal_title：Hearing research

authors： Furuta H,Mori N,Sato C,Hoshikawa H,Sakai S,Iwakura S,Doi K

更新日期：1994-08-01 00:00:00

abstract：:Endocochlear potentials (EPs) were investigated in healthy guinea pigs and in those exposed to white noise of 125 dB SPL for 20-80 min. EPs were measured during and after temporary anoxia (3.5 min, denoted as reversible anoxia) and then during continuous anoxia to evaluate noise-induced changes in EP properties. Succi...

journal_title：Hearing research

authors： Wang JA,Dong WJ,Chen JS

更新日期：1990-03-01 00:00:00

abstract：:The laminar distribution and reciprocity of commissural axon terminals and cells of origin in cat primary auditory cortex (AI) were studied after injections of tritiated proline combined with horseradish peroxidase in the middle ectosylvian gyrus. Terminal fields were found in every cortical layer in the contralateral...

journal_title：Hearing research

authors： Code RA,Winer JA

更新日期：1986-01-01 00:00:00