Effects of spontaneous otoacoustic emissions on pure-tone frequency difference limens

2014 ◽  
Vol 136 (6) ◽  
pp. 3147-3158 ◽  
Author(s):  
Rói Hansen ◽  
Sébastien Santurette ◽  
Sarah Verhulst
Keyword(s):  
Otoacoustic Emissions ◽  
Pure Tone ◽  
Frequency Difference ◽  
Tone Frequency ◽  
Spontaneous Otoacoustic Emissions

scholarly journals Characterizing the dependence of pure-tone frequency difference limens on frequency, duration, and level

2012 ◽  
Vol 292 (1-2) ◽  
pp. 1-13 ◽  
Author(s):  
Christophe Micheyl ◽  
Li Xiao ◽  
Andrew J. Oxenham
Keyword(s):  
Pure Tone ◽  
Frequency Difference ◽  
Tone Frequency

Covariation of Tinnitus Pitch and the Associated Emission: A Case Study

1994 ◽  
Vol 110 (3) ◽  
pp. 304-309
Author(s):  
Ilsa Schwartz ◽  
M. J. Penner ◽  
Lisa Glotzbach
Keyword(s):  
Otoacoustic Emissions ◽  
Pure Tone ◽  
Local Minimum ◽  
Female Subject ◽  
Local Maximum ◽  
Otoacoustic Emission ◽  
Spontaneous Otoacoustic Emissions ◽  
Empirically Supported ◽  
The Subject

Tinnitus in one female subject was found to be related to numerous (as many as 21) bilateral spontaneous otoacoustic emissions. The association of tinnitus and spontaneous otoacoustlc emissions was empirically supported by the masking/suppression demonstration.1 The subject reported that her tinnitus occurred primarily in her right ear, which had linked, quasi-stable spontaneous otoacoustic emissions not found contralaterally. During one menstrual cycle, a pure tone was adjusted to match the predominant tinnitus pitch. The frequency of the tone generally followed the day-to-day shifts in the frequency of the associated spontaneous otoacoustic emission. The frequencies of these tones were a local minimum near the onset of menstruation, reaching a local maximum after menstruation.

Evaluation of Efferent Auditory System and Hearing Quality in Parkinson's Disease: Is the Difficulty in Speech Understanding in Complex Listening Conditions Related to Neural Degeneration or Aging?

2020 ◽  
pp. 1-9
Author(s):  
Nuriye Yıldırım Gökay ◽  
Bülent Gündüz ◽  
Fatih Söke ◽  
Recep Karamert
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Auditory System ◽  
Otoacoustic Emissions ◽  
Pure Tone ◽  
Pure Tone Audiometry ◽  
Auditory Pathway ◽  
Normal Hearing ◽  
System Function ◽  
Distortion Product

Purpose The effects of neurological diseases on the auditory system have been a notable issue for investigators because the auditory pathway is closely associated with neural systems. The purposes of this study are to evaluate the efferent auditory system function and hearing quality in Parkinson's disease (PD) and to compare the findings with age-matched individuals without PD to present a perspective on aging. Method The study included 35 individuals with PD (mean age of 48.50 ± 8.00 years) and 35 normal-hearing peers (mean age of 49 ± 10 years). The following tests were administered for all participants: the first section of the Speech, Spatial and Qualities of Hearing Scale; pure-tone audiometry, speech audiometry, tympanometry, and acoustic reflexes; and distortion product otoacoustic emissions (DPOAEs) and contralateral suppression of DPOAEs. SPSS Version 25 was used for statistical analyses, and values of p < .05 were considered statistically significant. Results There were no statistically significant differences in the pure-tone audiometry thresholds and DPOAE responses between the individuals with PD and their normal-hearing peers ( p = .732). However, statistically significant differences were found between the groups in suppression levels of DPOAEs and hearing quality ( p < .05). In addition, a statistically significant and positive correlation was found between the amount of suppression at some frequencies and the Speech, Spatial and Qualities of Hearing Scale scores. Conclusions This study indicates that medial olivocochlear efferent system function and the hearing quality of individuals with PD were affected adversely due to the results of PD pathophysiology on the hearing system. For optimal intervention and follow-up, tasks related to hearing quality in daily life can also be added to therapies for PD.

scholarly journals Spontaneous Otoacoustic Emissions Reveal an Efficient Auditory Efferent Network

2018 ◽  
Vol 61 (11) ◽  
pp. 2827-2832 ◽  
Author(s):  
Viorica Marian ◽  
Tuan Q. Lam ◽  
Sayuri Hayakawa ◽  
Sumitrajit Dhar
Keyword(s):  
Otoacoustic Emissions ◽  
Spontaneous Otoacoustic Emissions ◽  
Auditory Efferent

scholarly journals Cochlear function in patients with chronic kidney disease

2013 ◽  
Vol 60 (1) ◽  
Author(s):  
Samantha Marlanie Govender ◽  
Cyril Devdas Govender ◽  
Glenda Matthews
Keyword(s):  
Chronic Kidney Disease ◽  
Hearing Loss ◽  
Kidney Disease ◽  
Otoacoustic Emissions ◽  
Pure Tone ◽  
Pure Tone Audiometry ◽  
Drug Intake ◽  
Cochlear Function ◽  
Distortion Product ◽  
Cochlear Dysfunction

Objective: To evaluate cochlear functioning in patients (18 - 45 years old) with varying stages of chronic kidney disease (CKD). Using purposive sampling, 50 participants, 10 in each of the 5 stages of CKD, were selected and underwent pure tone audiometric testing and distortion product otoacoustic emissions (DPOAEs).Results: Significant differences (p<0.05) were found between pure tone audiometry and DPOAEs in detecting early cochlear dysfunction in the high-frequency range in stages 3 (6 000/5 000 Hz; p=0.00), 4 (6 000/5 000 Hz; p<0.03) and 5 (4 000/3 333 Hz; p<0.01, 8 000/6 667 Hz:p<0.05) with DPOAEs being more sensitive in identifying early cochlear dysfunction. Patients in stages 1 and 2 presented with normal puretone thresholds and DPOAEs, suggesting that cochlear functioning in these patients was normal. Early cochlear dysfunction, thereby indicating a subclinical hearing loss, was identified in stages 3, 4 and 5 by DPOAE testing. In addition, blood test results, drug intake and concomitant conditions were recorded and analysed which suggested a relationship between reduced cochlear functioning and increased electrolyte levels, treatment regimens and concomitant conditions.Conclusion: Participants in the later stages of CKD presented with early cochlear dysfunction, presenting with subclinical hearing loss. It was postulated that this subclinical hearing loss resulted from a combination of electrolytic, urea and creatinine imbalances, together with concomitant medical conditions and ototoxic drug intake. It was concluded that audiological monitoring be included in the management of patients with CKD and that DPOAEs be introduced as part of the test battery to monitor cochlear function in patients with varying degrees of CKD.

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