In-situ sensitivity of a totally-implantable microphone.

abstract：:Echolocation offers a promising approach to improve the quality of life of people with blindness although little is known about the factors influencing object localisation using a 'searching' strategy. In this paper, we describe a series of experiments using sighted and blind human listeners and a 'virtual auditory sp...

journal_title：Hearing research

authors： Rowan D,Papadopoulos T,Edwards D,Holmes H,Hollingdale A,Evans L,Allen R

更新日期：2013-06-01 00:00:00

abstract：:Cochlear microphonics (CM) were recorded with differential electrodes from several locations in the guinea pig cochlea. Input-output curves and amplitude-frequency curves were plotted before and after short exposures to intense noise. In addition to amplitude losses, important changes in the intensity functions result...

journal_title：Hearing research

authors： Legouix JP,Joannès M

更新日期：1984-04-01 00:00:00

abstract：:Spontaneous synaptic activity in afferent fibers innervating hair cells of the lateral line organ was monitored with micropipettes at visually identified locations near the peripheral terminations of the fibers. Spontaneous action potentials as well as spontaneous excitatory post-synaptic potentials (EPSPs) were obser...

journal_title：Hearing research

authors： Sewell WF

更新日期：1990-02-01 00:00:00

abstract：:The glycoconjugates in the cochlea of the guinea pig were studied by staining samples by the silver methenamine method as well as after periodic acid-Schiff (PAS) staining. Results obtained by the two methods were similar but not identical. The silver methenamine method was much better in terms of resolution. However,...

journal_title：Hearing research

authors： Kawamata S,Igarashi Y

更新日期：1993-05-01 00:00:00

abstract：:During normal development, cells divide, then differentiate to adopt their individual form and function in an organism. Under most circumstances, mature cells cannot transdifferentiate, changing their fate to adopt a different form and function. Because differentiated cells cannot usually divide, the repair of injurie...

journal_title：Hearing research

authors： Batts SA,Raphael Y

更新日期：2007-05-01 00:00:00

abstract：:Despite the common use of guinea pigs in investigations of the neural mechanisms of binaural and spatial hearing, their behavioral capabilities in spatial hearing tasks have surprisingly not been thoroughly investigated. To begin to fill this void, we tested the spatial hearing of adult male guinea pigs in several exp...

journal_title：Hearing research

authors： Greene NT,Anbuhl KL,Ferber AT,DeGuzman M,Allen PD,Tollin DJ

更新日期：2018-08-01 00:00:00

abstract：:Using transgenic fluorescent reporter mice in combination with an established tissue clearing method, we detail heretofore optically opaque regions of the spiral lamina and spiral limbus where the auditory peripheral nervous system is located and provide insight into changes in cochlear vascular density with ageing. W...

journal_title：Hearing research

authors： Jiang H,Wang X,Zhang J,Kachelmeier A,Lopez IA,Shi X

更新日期：2019-01-01 00:00:00

abstract：:Cochlear outer hair cell (OHC) electromotility is associated with the cell's lateral wall. The lateral wall contains two distinct membranes: the plasma membrane (PM) and the subsurface cisternae (SSC). We explored biophysical characteristics of these lipid structures using membrane-specific fluorescent dyes. We have p...

journal_title：Hearing research

authors： Oghalai JS,Tran TD,Raphael RM,Nakagawa T,Brownell WE

更新日期：1999-09-01 00:00:00

abstract：:Spike potentials were recorded from single, afferent fibres in the pigeon auditory nerve. Pure-tone stimuli were presented in quiet and in combination with wide band noise. Presented alone, tones produced tuned response areas; noise generally drove spike rate to well above the spontaneous rate measured in quiet. When ...

journal_title：Hearing research

authors： Hill KG,Mo J,Stange G

更新日期：1989-05-01 00:00:00

abstract：:The analysis of the auditory scene begins from the moment we hear sounds, making it possible for the infant to distinguish the mother's voice from other sounds in the environment. The purpose of the study was to determine, in two experiments, whether the frequency separation threshold, at which the perception of a mix...

journal_title：Hearing research

authors： Sussman E,Wong R,Horváth J,Winkler I,Wang W

更新日期：2007-03-01 00:00:00

abstract：:Both sound exposure and gentamicin treatment cause damage to sensory hair cells in the peripheral chick auditory organ, the basilar papilla. This induces a regeneration response which replaces hair cells and restores auditory function. Since functional recovery requires the re-establishment of connections between rege...

journal_title：Hearing research

authors： Ofsie MS,Hennig AK,Messana EP,Cotanche DA

更新日期：1997-11-01 00:00:00

abstract：:The columnar and layer-specific response properties of neurons in the primary auditory cortex (AI) of Mongolian gerbils were studied using single-unit recordings of responses to tone-burst stimuli presented to the ear contralateral to the recording side. During near-radial microelectrode penetrations of the AI in 100-...

journal_title：Hearing research

authors： Sugimoto S,Sakurada M,Horikawa J,Taniguchi I

更新日期：1997-10-01 00:00:00

abstract：:Acoustic distortion has been measured from the ear canals of guinea pigs treated with the aminoglycoside antibiotic gentamicin. The correlation between pre- and post-treatment levels of distortion can be related to the extent of outer hair cell (OHC) pathology induced by gentamicin. All animals that were treated and s...

journal_title：Hearing research

authors： Brown AM,McDowell B,Forge A

更新日期：1989-11-01 00:00:00

abstract：:The primary goal of most cochlear implant procedures is to improve a patient's ability to discriminate speech. To accomplish this, cochlear implants are programmed so as to maximize speech understanding. However, programming a cochlear implant can be an iterative, labor-intensive process that takes place over months. ...

journal_title：Hearing research

authors： Pollonini L,Olds C,Abaya H,Bortfeld H,Beauchamp MS,Oghalai JS

更新日期：2014-03-01 00:00:00

abstract：:In order to determine the place-frequency map of the rat cochlea, iontophoretic HRP-injections were made into the cochlear nucleus at electrophysiologically characterized positions. Distribution of retrograde HRP transport in cochlear spiral ganglion cells was analysed by means of a three dimensional reconstruction of...

journal_title：Hearing research

authors： Müller M

更新日期：1991-02-01 00:00:00

abstract：:The peripheral auditory sense organ, the cochlea, receives innervation from lateral and medial olivocochlear neurons in the brainstem. These neurons are able to modulate cochlear neural output. Anatomical studies have shown that one of the neurotransmitters which is present in varicosities surrounding the olivocochlea...

journal_title：Hearing research

authors： Mulders WH,Robertson D

更新日期：2005-06-01 00:00:00

abstract：:Heat shock protein-27 (Hsp27) is known to function as both a stress-inducible molecular chaperone and regulator of actin polymerization. For many cells in the cochlea, actin is part of the cytoskeleton and plays an important role in the maintenance of cochlear function. To understand the molecular processes by which t...

journal_title：Hearing research

authors： Leonova EV,Fairfield DA,Lomax MI,Altschuler RA

更新日期：2002-01-01 00:00:00

abstract：:Doppler vibrometers are used by many research groups to monitor the motion of the tympanic membrane (TM) and of middle ear ossicles for in vivo and in vitro studies. Power densities in these applications reach 80 W/cm(2). To determine the safe limit of exposure, a cw dye laser at a wavelength of 633 nm was used to inv...

journal_title：Hearing research

authors： Foth H,Färber S,Gauer A,Wagner R

更新日期：2000-04-01 00:00:00

abstract：:Thresholds for pure tones embedded in harmonic complexes were measured behaviorally and physiologically for three species of birds, and physiologically in gerbils. The harmonic maskers were generated using the Schroeder-phase algorithm, characterized by monotonically increasing or decreasing phase across frequency. Pr...

journal_title：Hearing research

authors： Dooling RJ,Dent ML,Leek MR,Gleich O

更新日期：2001-02-01 00:00:00

abstract：:Most previous reports of ototoxicity following exposure to several volatile organic solvents have restricted testing to the low- and mid-frequencies (2-20 kHz) of the hearing range in the rat (0.25-80 kHz). We report here that inhalation exposure to styrene, mixed xylene, toluene, and 1,1,2-trichloroethylene resulted ...

journal_title：Hearing research

authors： Crofton KM,Lassiter TL,Rebert CS

更新日期：1994-10-01 00:00:00

abstract：:We examined calcitonin-gene related peptide (CGRP)-like immunoreactivity in the guinea pig organ of Corti at both the light and electron microscope level using immunofluorescence and immunoperoxidase techniques. We observed strong CGRP-like immunoreactivity in the inner spiral bundle and tunnel spiral bundle in all tu...

journal_title：Hearing research

authors： Sliwinska-Kowalska M,Parakkal M,Schneider ME,Fex J

更新日期：1989-10-01 00:00:00

abstract：INTRODUCTION:Distortion product otoacoustic emissions (DPOAEs) are known to represent the contractile amplifier function of cochlear outer hair cells. It is known that low or absent DPOAEs are associated with hearing loss on audiograms. However, low DPOAEs can also be found associated with normal audiograms. It is unkn...

journal_title：Hearing research

authors： Job A,Raynal M,Kossowski M,Studler M,Ghernaouti C,Baffioni-Venturi A,Roux A,Darolles C,Guelorget A

更新日期：2009-05-01 00:00:00

abstract：:Interaural time and intensity differences (ITD and IID) are important cues in binaural hearing and allow for sound localization, improving speech understanding in noise and reverberation, and integrating sound sources in the auditory scene. Whereas previous research showed that the upper-frequency limit for ITD detect...

journal_title：Hearing research

authors： Ross B

更新日期：2018-12-01 00:00:00

abstract：:For the elevation and front-versus-back hemifield of a sound source to be accurately determined, the sound must contain a broad range of frequencies. Experiment 1 of this study examined the spectral integration time of the auditory localisation system by measuring the accuracy with which frequency-modulated (FM) tones...

journal_title：Hearing research

authors： Martin RL,McAnally KI

更新日期：2008-04-01 00:00:00

abstract：:The barn owl (Tyto alba) uses interaural level difference (ILD) as a cue for the localization of sound. The first site of binaural convergence in the pathway that processes ILD is the ventral lateral lemniscus pars posterior (VLVp). Neurons in VLVp receive excitatory input from the contralateral nucleus angularis, and...

journal_title：Hearing research

authors： Peddicord R

更新日期：1998-09-01 00:00:00

abstract：:Auditory evoked magnetic fields were measured using a stimulation sequence where repetitive identical tone bursts were randomly and infrequently replaced by shorter tones. The deviation in the stimulus duration evoked a specific response, the mismatch field, peaking about 130 ms after the end of the shorter stimulus. ...

journal_title：Hearing research

authors： Kaukoranta E,Sams M,Hari R,Hämäläinen M,Näätänen R

更新日期：1989-08-01 00:00:00

abstract：:Previous investigations have shown that a subset of inferior colliculus neurons, which have been designated type O units, respond selectively to isolated features of the cat's head-related transfer functions (HRTFs: the directional transformation of a free-field sound as it propagates from the head to the eardrum). Ba...

journal_title：Hearing research

authors： May BJ,Anderson M,Roos M

更新日期：2008-04-01 00:00:00

abstract：:Although gap junctions occur in auditory and vestibular systems, their function is unclear. Here we present evidence for gap junctional communication in transmitting mechanosensory signals in a sea anemone model system. Hair bundles on anemone tentacles are vibration-sensitive mechanoreceptors that regulate discharge ...

journal_title：Hearing research

authors： Mire P,Nasse J,Venable-Thibodeaux S

更新日期：2000-06-01 00:00:00

abstract：:The C3H/lpr autoimmune strain mouse is a model for spontaneous systemic lupus erythematosus. Inner ear structure and function were examined during systemic autoimmune disease progression to identify correlated auditory system pathology. Onset of the systemic disease occurred at 2-3 months of age and was characterized ...

journal_title：Hearing research

authors： Trune DR,Craven JP,Morton JI,Mitchell C

更新日期：1989-03-01 00:00:00

abstract：:The lipophilic dye, DiI, was placed into the macula lagena of paraformaldehyde-fixed embryonic chicks. Retrogradely labeled cells were found bilaterally in the pontine reticular formation (RF) between the dorsal facial nucleus and the abducens nerve root. This location is similar to that of the dorsomedial group of ef...

journal_title：Hearing research

authors： Code RA

更新日期：1995-01-01 00:00:00