Influence of Cochlear Function on Auditory Temporal Resolution in Tinnitus Patients

Sanches, Seisse Gabriela Gandolfi; Sánchez, Tanit Ganz; Carvallo, Renata Mota Mamede

doi:10.1159/000272939

Cited by 41 publications

(50 citation statements)

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“…The present results may be useful to in differentiating between middle and inner ear dysfunction, considering that DPOAE I/O functions slopes are affected only by inner ear conditions. However, in a study of tinnitus and DPOAE I/O functions at 4000 Hz, Sanches et al [19] found that normal-hearing individuals with tinnitus presented shallower slopes (slope measured from 20 to 60 dB peSPL) than the control group. They suggested that both the shallower slope and the reduced response at 80 dB in the DPOAE I/O functions might be associated with subclinical inner ear damages that were not detected in pure-tone audiometry.…”

Section: Discussionmentioning

confidence: 99%

Alteration of distortion product otoacoustic emission input/output functions in subjects with a previous history of middle ear dysfunction

et al. 2012

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SummaryBackgroundThe aim of this study was to investigate the effects of sub-clinical alterations on the amplitudes and slopes of the DPOAE input-output responses from subjects with previous history of middle ear dysfunction.Material/MethodsThe study included 15 subjects with and 15 subjects without a history of otitis media in the last 10 years. All participants were assessed with acoustic immittance, pure-tone audiometry, and DPOAEs. For the later, I/O functions and I/O slopes were estimated at 1501, 2002, 3174, 4004 and 6384Hz.ResultsNo statistically significant differences were found between the 2 groups in terms of behavioral thresholds. The group with a previous history of middle ear dysfunction presented significantly lower mean DPOAE amplitudes at 2002, 3174 and 4004 Hz. In terms of DPOAE slopes, no statistically significant differences were observed at the tested frequencies, except at 3174 Hz.ConclusionsMiddle ear pathologies can produce subclinical alterations that are undetectable with traditional pure-tone audiometry. The data from the present study show that reduced amplitude DPOAEs are associated with a previous history of middle ear complications. The corresponding DPOAE slopes were affected at only 1 tested frequency, suggesting that the cochlear non-linearity is preserved. Considering these results, it remains to be elucidated to what degree the DPOAE amplitude attenuation interferes with higher-order auditory tasks.

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Section: Discussionmentioning

confidence: 99%

Alteration of distortion product otoacoustic emission input/output functions in subjects with a previous history of middle ear dysfunction

et al. 2012

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“…The study of Weisz20 suggests that even in individuals with normal hearing thresholds, the tinnitus may be related to the lack of afferent peripheral auditory information, agreeing with the view that the cochlear damage initiates a series of alterations in the central auditory system, resulting in tinnitus4, 7,17,21. It is expected that individuals with hearing loss have difficulty to obtain a good performance in tasks involving detection of silence gaps9,16,22,23. Sanches et al 24 showed the influence of hearing in frequencies above 8 kHz in the perception of silence gaps in the GIN test by individuals with tinnitus complaints. The present study reveals that the auditory deficit, even in individuals with normal pure tone thresholds (up to 25 dB HL), may already have had its onset as the Research Group presented higher hearing thresholds than the Control Group.…”

Section: Discussionmentioning

confidence: 99%

Teste GIN (Gaps-in-Noise) em ouvintes normais com e sem zumbido

Sanches

Samelli²,

Nishiyama

et al. 2010

Pró-Fono R. Atual. Cient.

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Background: the Gaps-in-Noise (GIN) test assesses the auditory temporal resolution skill. Studies have described the GIN test an instrument of easy application and with good sensitivity and specificity. Aim: to compare the results of the GIN test in normal listeners with and without tinnitus and to correlate the obtained results with pure tone thresholds and age. Method: hearing tests were performed in 44 subjects (hearing threshold up to 25 dB HL in the frequencies of 0.25 to 8 kHz). Two groups were considered for comparison: the Control Group with 23 subjects, 8 men and 15 women, aged between 22-40 (mean 29.7), and the Research Group with 18 tinnitus patients, 3 men and 15 women, aged between 21-45 (mean 31.3). All subjects underwent pure tone audiometry, speech tests, acoustic immittance measurements and the GIN test. For the statistical analysis, the significance level of 0.05 was adopted. Results: considering pure tone audiometry, the overall mean for hearing thresholds was significantly higher for the Research Group when compared to the Control Group (p = 0.001). The comparison between the groups for the performance in the GIN test indicated that the Control Group detected gaps with a shorter time interval than the Research Group (p < 0.001). There was no correlation between the age of the subjects and the level of the GIN test. Conclusion: the GIN test identified deficit in the hearing skill of temporal resolution in patients with tinnitus. In the studied age group (21 to 45 years) there was no correlation between age and the results obtained in the GIN test. Key Words: Tinnitus; Auditory Perception; Hearing Tests; Hearing. ResumoTema: o teste Gaps-in-Noise (GIN) avalia a habilidade auditiva de resolução temporal. Estudos têm mostrado o teste GIN como um instrumento de fácil aplicação, com boa sensibilidade e especificidade. Objetivo: comparar os resultados do teste GIN em ouvintes normais com e sem zumbido e fazer a correlação entre os resultados deste, os limiares tonais e idade. Método: foram avaliados 44 adultos (limiares tonais 25 dBNA nas freqüências de 0,25 a 8 kHz), formando 2 grupos: Grupo Controle composto por 23 sujeitos, 8 homens e 15 mulheres, sem queixa de zumbido, idade entre 22 e 40 anos (média 29,7); Grupo Pesquisa formado por 18 indivíduos, 3 homens e 15 mulheres, com queixa de zumbido, idade entre 21 e 45 anos (média 31,3). Os sujeitos foram submetidos à audiometria tonal e vocal, imitanciometria e ao teste GIN. Para a análise estatística foi adotado nível de significância de 0.05. Resultados: na audiometria tonal, a média global dos limiares tonais foi mais elevada para o Grupo Pesquisa, comparado ao Grupo Controle (p = 0,001). A comparação do desempenho no teste GIN mostrou que o Grupo Controle detectou intervalos de silêncio em média com intervalo de tempo menor que o Grupo Pesquisa (p < 0,001). Não houve correlação entre a idade dos sujeitos e o limiar do GIN. Conclusão: o teste GIN identificou prejuízo na habilidade auditiva de resolução temporal nos indivíduos com zumbido....

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“…The reduction of the DPOAE after exposure to noise is described in the literature 14 , especially in the 5 and 6 kHz. Many studies show the possible use of the DPOAE I/O as an indirect measure of human cochlear nonlinearity 15,16 . The slope of the function can be evaluated and a threshold can be determined, as an additional procedure to check hearing function 6,11,17 .…”

Section: Introductionmentioning

confidence: 99%

Otoacoustic emissions in young adults exposed to drums noise of a college band

2017

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Purpose: to identify cochlear dysfunction and occurrence of tinnitus in young adults exposed to drums noise of a college band.Methods: the sample included 50 subjects: 25 musicians (study group) and 25 non--musicians (control group). The procedures included anamnesis, pure tone audiometry, acoustic impedance and Transient Evoked Otoacoustic Emissions, Distortion Product Otoacoustic Emissions and Distortion Product Otoacoustic Emissions InputOutput function.Results: positive correlation between the occurrence of tinnitus and the variables exposure time and use of personal stereos was found. Overall, the study group showed significantly lower Transient Evoked Otoacoustic Emissions, when compared to the control group. In the study group, there was a tendency toward worse response in 6 kHz(f2) in Distortion Product Otoacoustic Emissions in both ears. The Distortion Product Otoacoustic Emissions Input-Output function did not differ between groups nor did its slope.Conclusion: in general, otoacoustic emissions were worse in noise-exposed young people (study group) when compared to the unexposed (control group), indicating that the test may be important in early identification of cochlear changes.

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Influence of Cochlear Function on Auditory Temporal Resolution in Tinnitus Patients

Cited by 41 publications

References 73 publications

Alteration of distortion product otoacoustic emission input/output functions in subjects with a previous history of middle ear dysfunction

Alteration of distortion product otoacoustic emission input/output functions in subjects with a previous history of middle ear dysfunction

Teste GIN (Gaps-in-Noise) em ouvintes normais com e sem zumbido

Otoacoustic emissions in young adults exposed to drums noise of a college band

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