![]() ![]() The results can be used to explain deviations in whole-nerve recordings in abnormal cochleas. ![]() The various features in the click responses were in most cases consistent with the type of FTC. PSTHs for type I have longer dominant-peak latencies and smaller amplitudes PSTHs for type II were normal well above the fiber’s threshold PSTHs for type III revealed remarkable patterns with multiple peaks, part of them with a latency strongly varying with polarity PSTHs for type IV showed narrow peaks and steep amplitude/intensity curves PSTHs for type V showed a multiple peaked pattern and large amplitudes and steep amplitude/intensity curves to rarefaction polarity. The click PSTHs of abnormal fibers were compared to normal PSTHs at equal sound-pressure levels, and various abnormal trends were found corresponding to the type of FTC. Type I is elevated as a whole, type II has an elevated (and often broadened) tip and a tail at normal level, type III has low thresholds in the tail (often hypersensitive), type IV represents a flat tuning, and type V has no tip but shows a clear appearance of the tail (often hypersensitive). Five types of abnormal FTCs are distinguished. The PSTHs found in fibers with elevated thresholds are discussed in relation to the frequency threshold curves (FTCs) measured in these fibers. Fibres from the cochlear nerve bifurcate and information is sent to the cochlear nuclei on each side of the brainstem: Ventral (anterior) cochlear nucleus. Poststimulus time histograms (PSTHs) were recorded for various click intensities and for the two click polarities. The Auditory Nerve conveys the neuronal activity generated by the hair cells to a specialized nucleus of the thalamus. Filename: AVD1150020174315-Scan.pdf File size: 2.92 MB Last updated: 2. Send us feedback about these examples.This paper describes auditory-nerve single-fiber responses to clicks in noise-damaged cochleas. These examples are programmatically compiled from various online sources to illustrate current usage of the word 'auditory nerve.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Andrew Grant, Discover Magazine, 27 June 2010 The signals from these cells are passed to the auditory nerve and decoded in the brain. 2021 In a sense, cyborgs already walk among us: Nearly 200,000 deaf or near-deaf people have cochlear implants, electronic sound-processing machines that stimulate the auditory nerve and link into the brain. Holly Barker, Discover Magazine, 3 Nov. 2010 Smoking can harm hearing in other ways, such as through alterations in auditory nerve signalling or by causing damage to the tiny hairs inside the ear. Carl Zimmer, Discover Magazine, 26 Oct. 2012 That is why tinnitus often doesn’t go away when people get their auditory nerve surgically cut. Jeremy Hillpot, Discover Magazine, This type of hearing loss, which affects many people, is currently untreatable it isn’t helped by hearing aids or cochlear implants, both of which depend on the auditory nerve to send the final signals to the brain. 2023 The electric charge stimulates the auditory nerve. Jennifer Ouellette, Ars Technica, 22 Mar. 2011 Beethoven-Haus Bonn An autopsy identified severe liver damage (evidence of cirrhosis) as the likely cause of death and significant dilation of the auditory nerve. To study structurefunction relationships between auditory nerve and cochlear nucleus, axonal arborizations of type I spiral ganglion cells were labeled. Kim et al assess whether cochlear nerve size as measured by parasagittal magnetic resonance imaging is correlated with auditory performance after cochlear. Christopher Linstrom, Discover Magazine, 31 Jan. Recent Examples on the Web For the middle ear muscle reflex, the afferent limb is the auditory nerve the efferent limb is the facial nerve for the stapedius muscle and the trigeminal nerve for the tensor tympani muscle.
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