Tinnitus intensity dependent gamma oscillations of the contralateral auditory cortex.

<h4>Background</h4>Non-pulsatile tinnitus is considered a subjective auditory phantom phenomenon present in 10 to 15% of the population. Tinnitus as a phantom phenomenon is related to hyperactivity and reorganization of the auditory cortex. Magnetoencephalography studies demonstrate a co...

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Autores principales:	Elsa van der Loo, Steffen Gais, Marco Congedo, Sven Vanneste, Mark Plazier, Tomas Menovsky, Paul Van de Heyning, Dirk De Ridder
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2009
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/194565c8b662453b96a7461561ced739
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spelling	oai:doaj.org-article:194565c8b662453b96a7461561ced7392021-11-25T06:19:48ZTinnitus intensity dependent gamma oscillations of the contralateral auditory cortex.1932-620310.1371/journal.pone.0007396https://doaj.org/article/194565c8b662453b96a7461561ced7392009-10-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/19816597/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>Non-pulsatile tinnitus is considered a subjective auditory phantom phenomenon present in 10 to 15% of the population. Tinnitus as a phantom phenomenon is related to hyperactivity and reorganization of the auditory cortex. Magnetoencephalography studies demonstrate a correlation between gamma band activity in the contralateral auditory cortex and the presence of tinnitus. The present study aims to investigate the relation between objective gamma-band activity in the contralateral auditory cortex and subjective tinnitus loudness scores.<h4>Methods and findings</h4>In unilateral tinnitus patients (N = 15; 10 right, 5 left) source analysis of resting state electroencephalographic gamma band oscillations shows a strong positive correlation with Visual Analogue Scale loudness scores in the contralateral auditory cortex (max r = 0.73, p<0.05).<h4>Conclusion</h4>Auditory phantom percepts thus show similar sound level dependent activation of the contralateral auditory cortex as observed in normal audition. In view of recent consciousness models and tinnitus network models these results suggest tinnitus loudness is coded by gamma band activity in the contralateral auditory cortex but might not, by itself, be responsible for tinnitus perception.Elsa van der LooSteffen GaisMarco CongedoSven VannesteMark PlazierTomas MenovskyPaul Van de HeyningDirk De RidderPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 4, Iss 10, p e7396 (2009)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Elsa van der Loo Steffen Gais Marco Congedo Sven Vanneste Mark Plazier Tomas Menovsky Paul Van de Heyning Dirk De Ridder Tinnitus intensity dependent gamma oscillations of the contralateral auditory cortex.
description	<h4>Background</h4>Non-pulsatile tinnitus is considered a subjective auditory phantom phenomenon present in 10 to 15% of the population. Tinnitus as a phantom phenomenon is related to hyperactivity and reorganization of the auditory cortex. Magnetoencephalography studies demonstrate a correlation between gamma band activity in the contralateral auditory cortex and the presence of tinnitus. The present study aims to investigate the relation between objective gamma-band activity in the contralateral auditory cortex and subjective tinnitus loudness scores.<h4>Methods and findings</h4>In unilateral tinnitus patients (N = 15; 10 right, 5 left) source analysis of resting state electroencephalographic gamma band oscillations shows a strong positive correlation with Visual Analogue Scale loudness scores in the contralateral auditory cortex (max r = 0.73, p<0.05).<h4>Conclusion</h4>Auditory phantom percepts thus show similar sound level dependent activation of the contralateral auditory cortex as observed in normal audition. In view of recent consciousness models and tinnitus network models these results suggest tinnitus loudness is coded by gamma band activity in the contralateral auditory cortex but might not, by itself, be responsible for tinnitus perception.
format	article
author	Elsa van der Loo Steffen Gais Marco Congedo Sven Vanneste Mark Plazier Tomas Menovsky Paul Van de Heyning Dirk De Ridder
author_facet	Elsa van der Loo Steffen Gais Marco Congedo Sven Vanneste Mark Plazier Tomas Menovsky Paul Van de Heyning Dirk De Ridder
author_sort	Elsa van der Loo
title	Tinnitus intensity dependent gamma oscillations of the contralateral auditory cortex.
title_short	Tinnitus intensity dependent gamma oscillations of the contralateral auditory cortex.
title_full	Tinnitus intensity dependent gamma oscillations of the contralateral auditory cortex.
title_fullStr	Tinnitus intensity dependent gamma oscillations of the contralateral auditory cortex.
title_full_unstemmed	Tinnitus intensity dependent gamma oscillations of the contralateral auditory cortex.
title_sort	tinnitus intensity dependent gamma oscillations of the contralateral auditory cortex.
publisher	Public Library of Science (PLoS)
publishDate	2009
url	https://doaj.org/article/194565c8b662453b96a7461561ced739
work_keys_str_mv	AT elsavanderloo tinnitusintensitydependentgammaoscillationsofthecontralateralauditorycortex AT steffengais tinnitusintensitydependentgammaoscillationsofthecontralateralauditorycortex AT marcocongedo tinnitusintensitydependentgammaoscillationsofthecontralateralauditorycortex AT svenvanneste tinnitusintensitydependentgammaoscillationsofthecontralateralauditorycortex AT markplazier tinnitusintensitydependentgammaoscillationsofthecontralateralauditorycortex AT tomasmenovsky tinnitusintensitydependentgammaoscillationsofthecontralateralauditorycortex AT paulvandeheyning tinnitusintensitydependentgammaoscillationsofthecontralateralauditorycortex AT dirkderidder tinnitusintensitydependentgammaoscillationsofthecontralateralauditorycortex
_version_	1718413788454060032

Tinnitus intensity dependent gamma oscillations of the contralateral auditory cortex.

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