Abstract:
:When auditory nerve function is lost due to surgical removal of bilateral acoustic tumors in cases of neurofibromatosis type 2, a sense of hearing may be restored by means of an auditory brainstem implant (ABI), which electrically stimulates the cochlear nucleus. Electrically evoked auditory brainstem responses recorded from ABI subjects exhibit a variety of waveforms due to the presence or absence of different components. Evidently, ABI stimulation activates different ascending auditory pathways in different individuals. This study examined whether such differences at the brainstem level are associated with corresponding differences at higher levels. Multichannel recordings of electrically evoked middle-latency and late auditory responses were obtained from two ABI subjects whose very different electrically evoked auditory brainstem responses represent distinct categories of waveform morphology. The waveforms of both types of response were qualitatively similar in that for each condition tested there were corresponding main peaks and troughs. Quantitatively, however, there were differences in the scalp distributions and magnitudes of all components present. One subject had distributions suggesting bilateral activation and an N1-P2 complex of large amplitude, whereas the other subject had distributions suggesting unilateral activation contralateral to the side of stimulation and an N1-P2 complex of small amplitude. The differences suggest that activation of different ascending pathways in the auditory system results in different spatial and temporal patterns of neural activity in the thalamic and/or cortical auditory areas.
journal_name
Hear Resjournal_title
Hearing researchauthors
Waring MD,Ponton CW,Don Mdoi
10.1016/s0378-5955(99)00016-7keywords:
subject
Has Abstractpub_date
1999-04-01 00:00:00pages
219-29issue
1-2eissn
0378-5955issn
1878-5891pii
S0378-5955(99)00016-7journal_volume
130pub_type
杂志文章相关文献
HEARING RESEARCH文献大全abstract::The phase angle, alpha, between a tonal signal and a tonal masker was varied from 0 degrees to 135 degrees in simultaneous masking, forward masking, and pulsation-threshold paradigms. In all conditions the frequency of the signal and masker was 500 Hz. For forward masking both diotic (MOSO) and dichotic (MOS pi) liste...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/0378-5955(82)90039-9
更新日期:1982-08-01 00:00:00
abstract::To estimate the correlation between the cochlear lateral wall and endocochlear potential (EP), the EP was measured at different time intervals up to 3 weeks at cochlear focal lesions made in the guinea pig. Lesions were produced by a photochemical reaction between systemically administered Rose Bengal and green light ...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/s0378-5955(98)00204-4
更新日期:1999-02-01 00:00:00
abstract::This paper reviews some of what is known about ion transport through the cells of the mammalian stria vascularis, and discusses how the endolymph and endocochlear potential in scala media are produced by the stria's main cell types. It discusses the role of each cells' ion transport proteins from an engineering perspe...
journal_title:Hearing research
pub_type: 杂志文章,评审
doi:10.1016/j.heares.2011.01.010
更新日期:2011-07-01 00:00:00
abstract::The membrane glycoprotein CTL2/SLC44A2 is expressed by supporting cells in the inner ear and has been identified as a target of antibodies that may induce auto-immune hearing loss. To determine if CTL2/SLC44A2 also has roles in inner ear development and to distinguish between isoform-specific roles, we assessed age-re...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2011.09.004
更新日期:2011-12-01 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
pub_type: 杂志文章
doi:10.1016/0378-5955(90)90123-7
更新日期:1990-05-01 00:00:00
abstract::In order to investigate the localization and the type(s) of excitatory amino acid receptors in the frog vestibular system, the exogenous amino acid agonists Quisqualic acid, Kainic acid and N-methyl-D-aspartic acid were tested on the sensory organ of semicircular canals. Intracellular recordings of the resting dischar...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/0378-5955(90)90006-b
更新日期:1990-07-01 00:00:00
abstract::Gerbils are frequently used in auditory research; however, only limited information on the exact frequency representation in the cochlea is available. Therefore the place-frequency map of the gerbil was determined by iontophoretic application of horseradish peroxidase in physiologically characterized single auditory n...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/0378-5955(95)00230-8
更新日期:1996-05-01 00:00:00
abstract::In this paper we reconsider the designation of fishes as being either "hearing specialists" or "hearing generalists," and recommend dropping the terms. We argue that this classification is only vaguely and variously defined in the literature, and that these terms often have unclear and different meaning to different i...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2009.12.023
更新日期:2011-03-01 00:00:00
abstract::Spongiform lesions of the gerbil cochlear nucleus are reduced in number and extent by rearing in acoustic isolation compared with rearing while exposed to normal colony low-frequency background noise. This study tested whether rearing under exposure to noise bands of moderate intensity would increase the number and ex...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/0378-5955(94)90153-8
更新日期:1994-12-01 00:00:00
abstract::It has been demonstrated that INS can be utilized to stimulate spiral ganglion cells in the cochlea. Although neural stimulation can be achieved without direct contact of the radiation source and the tissue, the presence of fluids or bone between the target structure and the radiation source may lead to absorption or ...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2011.06.006
更新日期:2011-12-01 00:00:00
abstract::Kanamycin (KM)-induced changes in expression of the gene for glutamate-aspartate transporter (GLAST) in the rat cochlea were analyzed by Northern blotting. With the administration of KM (600 mg/kg/day) once daily for 20 days, the expression of GLAST mRNA gradually increased and reached a peak on day 20. Although the e...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/s0378-5955(99)00050-7
更新日期:1999-07-01 00:00:00
abstract::The discharge properties of 735 single units located in the pars magnocellularis (M) of the medial division of the medial geniculate body (MGB) were studied in 23 nitrous oxide anesthetized cats in response to simple acoustic stimuli (clicks, noise and tone bursts). A systematic decrease of single unit characteristic ...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/0378-5955(89)90086-5
更新日期:1989-05-01 00:00:00
abstract::We review event-related slow firing changes in the auditory cortex and related brain structures. Two types of changes can be distinguished, namely increases and decreases of firing, lasting in the order of seconds. Triggering events can be auditory stimuli, reinforcers, and behavioral responses. Slow firing changes te...
journal_title:Hearing research
pub_type: 杂志文章,评审
doi:10.1016/j.heares.2010.05.003
更新日期:2011-01-01 00:00:00
abstract::The inferior colliculus occupies a central position in ascending and descending auditory pathways. A substantial proportion of its neurons are GABAergic, and these neurons contribute to intracollicular circuits as well as to extrinsic projections to numerous targets. A variety of types of evidence - morphology, physio...
journal_title:Hearing research
pub_type: 杂志文章,评审
doi:10.1016/j.heares.2018.10.001
更新日期:2019-05-01 00:00:00
abstract::This study concerns the connections of the inner and outer hair cells and the different types of ganglion cells of the mammalian cochlea with the central nervous system by making use of their putative neurotransmitters. D-[3H]Aspartate (D-ASP), a putative marker for glutamatergic neurons, was injected into the cochlea...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/0378-5955(84)90029-7
更新日期:1984-09-01 00:00:00
abstract::Rodents have proven to be a useful model system to screen genes, ototoxic compounds and sound exposure protocols that may play a role in hearing loss. High-throughput screening depends upon a rapid and reliable functional assay for hearing loss. This study describes the use of a frequency modulated (FM) chirp stimulus...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2008.09.001
更新日期:2008-11-01 00:00:00
abstract::Auditory-nerve fibers demonstrate dynamic response properties in that they adapt to rapid changes in sound level, both at the onset and offset of a sound. These dynamic response properties affect temporal coding of stimulus modulations that are perceptually relevant for many sounds such as speech and music. Temporal d...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2010.07.009
更新日期:2010-10-01 00:00:00
abstract::Although the neural mechanisms underlying pitch perception are not yet fully understood, there is general agreement that place and temporal representations of pitch are both used by the auditory system. This paper describes a neural network model of pitch perception that integrates both codes of pitch and explores the...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2016.11.005
更新日期:2017-02-01 00:00:00
abstract::To rehabilitate profoundly deaf patients who are not suitable for cochlear implants, central auditory prostheses have been implanted. To compare two possible electrode configurations - penetrating and surface ones - electrical stimulation of the cochlear nucleus with both types of arrays was tested on guinea pigs and ...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/s0378-5955(97)00170-6
更新日期:1997-12-01 00:00:00
abstract::One objective electrophysiological test for deafness involves presenting a brief acoustic stimulus to a subject and measuring the electrical activity evoked in the muscle located just behind the ear (the post-auricular muscle or PAM). Although this electrical response has been known for many years, it has been ignored...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/s0378-5955(99)00159-8
更新日期:1999-12-01 00:00:00
abstract::We have analyzed a model for the motion of hair bundles of hair cells at high frequencies. In the model, hair-cell organs are represented as a system of rigid mechanical structures surrounded by fluid. A rigid body, that represents a hair bundle, is hinged to a vibrating plate that represents the sensory epithelium. T...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/0378-5955(90)90197-w
更新日期:1990-09-01 00:00:00
abstract::Glutamate has been implicated in signal transmission between inner hair cells and afferent fibers of the organ of Corti. The inner hair cells are enriched in glutamate and the postsynaptic membranes express AMPA glutamate receptors. However, it is not known whether inner hair cells contain a mechanism for glutamate re...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2012.07.005
更新日期:2012-10-01 00:00:00
abstract::A three-dimensional computer simulation of the experiment (Benser M. E., Issa N.P., Hudspeth A.J., 1993. Hear. Res. 68, 243-252), devoted to the mechanical stimulation of the surface of saccular membrane of bullfrog with the otoconial mass removed was carried out by finite-element method. Comparison of the calculated ...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/s0378-5955(00)00034-4
更新日期:2000-05-01 00:00:00
abstract::The mastoid air cell system has traditionally been considered to have a passive role in gas exchange and pressure regulation of the middle ear possibly with some acoustic function. However, more evidence has focused on the mucosa of the mastoid, which may play a more active role in regulation of middle ear pressure. I...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2013.03.002
更新日期:2013-07-01 00:00:00
abstract:BACKGROUND:Pitch perception of complex tones relies on place or temporal fine structure-based mechanisms from resolved harmonics and the temporal envelope of unresolved harmonics. Combining this information is essential for speech-in-noise performance, as it allows segregation of a target speaker from background noise....
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2018.06.016
更新日期:2018-09-01 00:00:00
abstract::Previous investigations have shown that components of a tone burst-evoked otoacoustic emission (TBOAE) evoked by a 1 kHz tone burst (TB1) can be suppressed by the simultaneous presence of a 2 kHz tone burst (TB2) or a pair of tone bursts at 2 and 3 kHz (TB2 and TB3 respectively). No previous study has measured this "s...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2015.04.013
更新日期:2015-09-01 00:00:00
abstract::Electrically evoked compound action potentials (ECAPs) have been used to examine temporal response patterns of the auditory nerve in cochlear implant (CI) recipients. ECAP responses to individual pulses in a pulse train vary across stimulation rates for individual CI users. For very slow rates, auditory neurons have a...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2017.06.004
更新日期:2017-08-01 00:00:00
abstract::The inferior colliculus (IC) receives and integrates excitatory and inhibitory inputs from many bilateral lower auditory nuclei, intrinsic projections within IC, contralateral IC through the commissure of IC and from the auditory cortex (AC). These excitatory and inhibitory inputs from both ascending and descending au...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/j.heares.2019.01.024
更新日期:2019-06-01 00:00:00
abstract::A derived response method of acquiring frequency specific auditory evoked potentials that utilizes a pure tone in combination with a toneburst is applied to the measurement of hearing sensitivity in guinea pigs, chinchillas and pocket gophers. Two experiments which demonstrate that thresholds acquired via tone-derived...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/0378-5955(91)90097-s
更新日期:1991-09-01 00:00:00
abstract::The dynamic properties of single olivocochlear efferent neurones in the guinea pig cochlea were examined using sinusoidally amplitude modulated (AM) pure tones. The neural discharge, when displayed as a cyclic histogram, clearly followed the rapid fluctuations in the continuous input sound. Modulation transfer functio...
journal_title:Hearing research
pub_type: 杂志文章
doi:10.1016/0378-5955(88)90136-0
更新日期:1988-10-01 00:00:00