Occurrence and suppression effect of Otoacoustic Emissions in normal hearing adults with tinnitus and hyperacusis

Urnau, Daila; Tochetto, Tânia Maria

doi:10.1590/s1808-86942012000100014

Cited by 17 publications

(17 citation statements)

References 29 publications

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“…Such values were higher than those found in the literature consulted (1.28 dB in the right ear and 1.25 dB in the left ear 26 and 1.29 dB in the right ear and 1.26 dB in the left ear) 4 . Therefore, despite the lack of a statistically significant difference, the mean amplitude of TEOAEs suppression were lower in patients with tinnitus (EG) than in individuals without the symptom (CG), similarly to another study that also compared the suppression effect between groups 9 .…”

Section: Legend: Teoaes-transient-evoked Otoacoustic Emissions N -Numcontrasting

confidence: 68%

“…Also called acouphène, this symptom may or may not be associated with hearing alterations, varying in intensity and quality from person to person and can be perceived as a high-pitched sound, like a bell, or even a low-pitched sound, such as an engine 3 . It ranges from a mild discomfort to a complete incapacity 1,4 . This complaint is still unclear in many aspects, especially concerning its origin and production.…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, some studies have shown that the function of the MSOC is reduced in the tinnitus side 4,6,23 . Therefore, although the results related to the suppression of TEOAEs were similar in individuals with and without tinnitus, we observed a tendency to less suppression effect in patients with tinnitus.…”

mentioning

confidence: 99%

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Avaliação eletroacústica da via eferente olivococlear em indivíduos com queixa de zumbido

et al. 2016

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Purpose: to investigate the suppressive effect of transient-evoked otoacoustic emissions in subjects with tinnitus complaint and normal audiometry and to analyze the relation to age, gender, laterality of tinnitus and its degree of discomfort. Methods: we assessed 60 subjects, 14 males and 46 females, aged between 20 and 59 years, 30 with tinnitus (experimental group) and 30 without tinnitus complaint (control group). The suppression of transient-evoked otoacoustic emissions was investigated with contralateral white noise at 50 dBHL at the frequency bands of 700, 1000, 1400, 2000, 2800 and 4000Hz. Results: the mean value for the suppression of transient-evoked otoacoustic emissions in the experimental group ranged from 2.14 to 4.38. In the control group, the mean value for suppression of transient--evoked otoacoustic emissions ranged from 2.27 to 4.88. Conclusion: suppression values of otoacoustic emissions were similar in subjects with and without tinnitus, although the results of the tinnitus group were lower, suggesting worse performance of the Superior Olivary Complex.

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Section: Legend: Teoaes-transient-evoked Otoacoustic Emissions N -Numcontrasting

confidence: 68%

Section: Introductionmentioning

confidence: 99%

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Avaliação eletroacústica da via eferente olivococlear em indivíduos com queixa de zumbido

et al. 2016

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“…Anomalous MOC function has been hypothesized, and tested for, in a variety of clinical conditions, including tinnitus, a prevalent and often disruptive condition in which sound is perceived in the absence of actual sound (Shargorodsky et al 2010;Stouffer and Tyler 1990). Despite a large number of studies, however, it remains unclear whether or not there is a relationship between MOC function and tinnitus (Attias et al 1996(Attias et al , 2005Ceranic et al 1998;Chéry-Croze et al 1993Fávero et al 2006;Fernandes and Santos 2009;Geven et al 2011Geven et al , 2012Graham and Hazell 1994;Hesse et al 2005Hesse et al , 2008Hsu et al 2013;Lalaki et al 2011;Lind 1996;Paglialonga et al 2010Paglialonga et al , 2011Riga et al 2007;Riga et al in press;Urnau and Tochetto 2012). Results differ even among the more carefully controlled studies of this issue, with some reporting reduced MOC function in tinnitus (Attias et al 1996;Riga et al 2007) and others reporting no difference compared with controls (Geven et al 2011;Lind 1996;Paglialonga et al 2010Paglialonga et al , 2011.…”

mentioning

confidence: 99%

Increased contralateral suppression of otoacoustic emissions indicates a hyperresponsive medial olivocochlear system in humans with tinnitus and hyperacusis

Knudson

Shera

Melcher

2014

Journal of Neurophysiology

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Knudson IM, Shera CA, Melcher JR. Increased contralateral suppression of otoacoustic emissions indicates a hyperresponsive medial olivocochlear system in humans with tinnitus and hyperacusis. J Neurophysiol 112: 3197-3208, 2014. First published September 17, 2014 doi:10.1152/jn.00576.2014.-Atypical medial olivocochlear (MOC) feedback from brain stem to cochlea has been proposed to play a role in tinnitus, but even well-constructed tests of this idea have yielded inconsistent results. In the present study, it was hypothesized that low sound tolerance (mild to moderate hyperacusis), which can accompany tinnitus or occur on its own, might contribute to the inconsistency. Sound-level tolerance (SLT) was assessed in subjects (all men) with clinically normal or near-normal thresholds to form threshold-, age-, and sex-matched groups: 1) no tinnitus/high SLT, 2) no tinnitus/low SLT, 3) tinnitus/high SLT, and 4) tinnitus/low SLT. MOC function was measured from the ear canal as the change in magnitude of distortion-product otoacoustic emissions (DPOAE) elicited by broadband noise presented to the contralateral ear. The noise reduced DPOAE magnitude in all groups ("contralateral suppression"), but significantly more reduction occurred in groups with tinnitus and/or low SLT, indicating hyperresponsiveness of the MOC system compared with the group with no tinnitus/high SLT. The results suggest hyperresponsiveness of the interneurons of the MOC system residing in the cochlear nucleus and/or MOC neurons themselves. The present data, combined with previous human and animal data, indicate that neural pathways involving every major division of the cochlear nucleus manifest hyperactivity and/or hyperresponsiveness in tinnitus and/or low SLT. The overactivation may develop in each pathway separately. However, a more parsimonious hypothesis is that top-down neuromodulation is the driving force behind ubiquitous overactivation of the auditory brain stem and may correspond to attentional spotlighting on the auditory domain in tinnitus and hyperacusis.

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“…In the case of individuals with tinnitus, several studies have investigated the correlation between the presence of tinnitus and the absence of suppression of evoked OAEs, but there is still no consensus about this association 6,16,27,[31][32][33] .…”

Section: Suppression Effect Of Oaesmentioning

confidence: 99%

Association between suppression of otoacoustic emissions and annoyance levels in tinnitus patients with normal hearing

Serra¹,

Granjeiro²,

Braga³

et al. 2015

The International Tinnitus Journal

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Occurrence and suppression effect of Otoacoustic Emissions in normal hearing adults with tinnitus and hyperacusis

Abstract: The occurrence of TEOAE was lower than that found in normal hearing adults. A higher percentage of the presence of TEOAE suppression effect has been found in both ears. No association between the variables was observed.

Cited by 17 publications

References 29 publications

Avaliação eletroacústica da via eferente olivococlear em indivíduos com queixa de zumbido

Avaliação eletroacústica da via eferente olivococlear em indivíduos com queixa de zumbido

Increased contralateral suppression of otoacoustic emissions indicates a hyperresponsive medial olivocochlear system in humans with tinnitus and hyperacusis

Association between suppression of otoacoustic emissions and annoyance levels in tinnitus patients with normal hearing

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