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Imaging the neural correlates of tinnitus: a comparison between animal models and human studies

Tinnitus is the perception of a sound, a so-called “phantom sound,” in the absence of a physical sound. The phantom perception persists after transection of the auditory nerve, indicating that the site of tinnitus manifestation is in the central nervous system. Imaging studies in tinnitus sufferers...

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Detalles Bibliográficos
Autores principales: Middleton, Jason W., Tzounopoulos, Thanos
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3343475/
https://www.ncbi.nlm.nih.gov/pubmed/22586378
http://dx.doi.org/10.3389/fnsys.2012.00035
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author Middleton, Jason W.
Tzounopoulos, Thanos
author_facet Middleton, Jason W.
Tzounopoulos, Thanos
author_sort Middleton, Jason W.
collection PubMed
description Tinnitus is the perception of a sound, a so-called “phantom sound,” in the absence of a physical sound. The phantom perception persists after transection of the auditory nerve, indicating that the site of tinnitus manifestation is in the central nervous system. Imaging studies in tinnitus sufferers have revealed increased neuronal activity—hyperactivity—in subcortical and cortical auditory centers. These studies have demonstrated that non-auditory brain areas, such as the limbic system, are involved in the neural basis of tinnitus, Finally human imaging studies have led to novel hypotheses for the generation of tinnitus, such as the thalamocortical dysrhythmia hypothesis. Imaging in animal models of tinnitus exhibit similarities to results from human studies and have revealed hyperexcitability of auditory brain centers as a neural correlate of tinnitus. We propose that the comparison between animal model and human studies will aid in the design of appropriate experimental paradigms aimed at elucidating the cellular and circuit mechanisms underlying tinnitus.
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spelling pubmed-33434752012-05-14 Imaging the neural correlates of tinnitus: a comparison between animal models and human studies Middleton, Jason W. Tzounopoulos, Thanos Front Syst Neurosci Neuroscience Tinnitus is the perception of a sound, a so-called “phantom sound,” in the absence of a physical sound. The phantom perception persists after transection of the auditory nerve, indicating that the site of tinnitus manifestation is in the central nervous system. Imaging studies in tinnitus sufferers have revealed increased neuronal activity—hyperactivity—in subcortical and cortical auditory centers. These studies have demonstrated that non-auditory brain areas, such as the limbic system, are involved in the neural basis of tinnitus, Finally human imaging studies have led to novel hypotheses for the generation of tinnitus, such as the thalamocortical dysrhythmia hypothesis. Imaging in animal models of tinnitus exhibit similarities to results from human studies and have revealed hyperexcitability of auditory brain centers as a neural correlate of tinnitus. We propose that the comparison between animal model and human studies will aid in the design of appropriate experimental paradigms aimed at elucidating the cellular and circuit mechanisms underlying tinnitus. Frontiers Media S.A. 2012-05-04 /pmc/articles/PMC3343475/ /pubmed/22586378 http://dx.doi.org/10.3389/fnsys.2012.00035 Text en Copyright © 2012 Middleton and Tzounopoulos. http://www.frontiersin.org/licenseagreement This is an open-access article distributed under the terms of the Creative Commons Attribution Non Commercial License, which permits non-commercial use, distribution, and reproduction in other forums, provided the original authors and source are credited.
spellingShingle Neuroscience
Middleton, Jason W.
Tzounopoulos, Thanos
Imaging the neural correlates of tinnitus: a comparison between animal models and human studies
title Imaging the neural correlates of tinnitus: a comparison between animal models and human studies
title_full Imaging the neural correlates of tinnitus: a comparison between animal models and human studies
title_fullStr Imaging the neural correlates of tinnitus: a comparison between animal models and human studies
title_full_unstemmed Imaging the neural correlates of tinnitus: a comparison between animal models and human studies
title_short Imaging the neural correlates of tinnitus: a comparison between animal models and human studies
title_sort imaging the neural correlates of tinnitus: a comparison between animal models and human studies
topic Neuroscience
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3343475/
https://www.ncbi.nlm.nih.gov/pubmed/22586378
http://dx.doi.org/10.3389/fnsys.2012.00035
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