Assessing the Effects of Pesticide Exposure on the Auditory System based on the Suppression of Transient-Evoked Otoacoustic Emissions

2016 ◽  
Vol 2016 (1) ◽  
Author(s):  
Maria Isabel Kós* ◽  
Tatiana Garcia ◽  
Silvana Frota ◽  
Maria de Fátima Miranda ◽  
Armando Meyer
Keyword(s):  
Auditory System ◽  
Otoacoustic Emissions ◽  
Pesticide Exposure ◽  
Transient Evoked Otoacoustic Emissions

scholarly journals Findings on the Central Auditory Functions of Endemic Disease Control Agents

2021 ◽  
Vol 18 (13) ◽  
pp. 7051
Author(s):  
Patrícia Arruda de Souza Alcarás ◽  
Bianca Simone Zeigelboim ◽  
Maria Cristina Alves Corazza ◽  
Débora Lüders ◽  
Jair Mendes Marques ◽  
...  
Keyword(s):  
Disease Control ◽  
Otoacoustic Emissions ◽  
Noise Exposure ◽  
Pesticide Exposure ◽  
Exposed Group ◽  
Occupational Noise ◽  
Endemic Disease ◽  
Transient Evoked Otoacoustic Emissions ◽  
Suppression Effect ◽  
Auditory Functions

This study aimed to assess the central auditory functions of endemic disease control agents. This cross-sectional cohort study comprised two groups: the exposed group, with 38 male endemic disease control agents with simultaneous occupational noise and pesticide exposure; and the control group, with 18 age- and sex-matched workers without occupational noise and/or pesticide exposure. All participants underwent pure-tone audiometry, brainstem auditory evoked potentials, dichotic digits test, and transient-evoked otoacoustic emissions suppression effect. There was a significant inter-group difference in waves III and V absolute latencies, and interpeak I–III and I–V latencies bilaterally, with worse results found in the exposed group. Abnormal dichotic digits test results occurred more often in the exposed group, with a significant association between pesticide- and noise-exposure and the abnormal results (p = 0.0099). The transient-evoked otoacoustic emissions with suppression effect did not yield significant inter-group differences. It was concluded that pesticide and noise exposure induce harmful effects on the central auditory functions, particularly on the brainstem and figure-ground speech-sound auditory skills.

scholarly journals The Hyperactivity of Efferent Auditory System in Patients with Schizophrenia: A Transient Evoked Otoacoustic Emissions Study

2016 ◽  
Vol 13 (1) ◽  
pp. 82 ◽  
Author(s):  
Noor Alaudin Abdul Wahab ◽  
Suzaily Wahab ◽  
Abdul Hamid Abdul Rahman ◽  
Dinsuhaimi Sidek ◽  
Mohd. Normani Zakaria
Keyword(s):  
Auditory System ◽  
Otoacoustic Emissions ◽  
Transient Evoked Otoacoustic Emissions

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 Comparisons of transient evoked otoacoustic emissions using chirp and click stimuli

2016 ◽  
Vol 140 (3) ◽  
pp. 1949-1973 ◽  
Author(s):  
Douglas H. Keefe ◽  
M. Patrick Feeney ◽  
Lisa L. Hunter ◽  
Denis F. Fitzpatrick
Keyword(s):  
Otoacoustic Emissions ◽  
Transient Evoked Otoacoustic Emissions

Audiological findings in glomus tumours

1997 ◽  
Vol 111 (3) ◽  
pp. 218-222 ◽  
Author(s):  
William W. Qiu ◽  
Shengguang S. Yin ◽  
Fred J. Stucker ◽  
Mardjohan Hardjasudarma
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Auditory System ◽  
Middle Ear ◽  
Otoacoustic Emissions ◽  
Cerebellopontine Angle ◽  
Auditory Brainstem ◽  
Auditory Brainstem Responses ◽  
Resonance Imaging ◽  
Magnetic Resonance Imaging Mri

AbstractGlomus tumours involving the middle ear and the cerebellopontine angle are reported with emphasis on audiological findings. Magnetic resonance imaging (MRI), angiographic and pathological results are presented. Audiological tests, including impedance audiometry, evoked otoacoustic emissions and auditory brainstem responses, are valuable in evaluation of the effect of glomus tumours on the auditory system as well as their pathological extent.

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