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Analysis of probe fitting stimulus properties on transient evoked otoacoustic emissions

Hannah Keppler (UGent) , Ellen Lampo (UGent) , Sofie Degeest (UGent) , Dick Botteldooren (UGent) , Bart Vinck (UGent) and Annelies Bockstael (UGent)
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Organization
Abstract
Objective: The objectives of the current study are first, to evaluate the subjective evaluation of probe fitting stimulus properties, and second, to analyse the effects of different probe fittings on transient evoked otoacoustic emission (TEOAE) response and noise amplitudes in subjects. Design: The Q methodology was used to sort 48 probe fittings differing in stimulus properties in seven categories from totally unacceptable to certainly acceptable. Further, TEOAE response and noise amplitudes were measured in one baseline condition with optimal probe fitting and eight experimental conditions with less than optimal probe fittings. Study sample: The probe fittings were ranked by 18 participants, while the repeated measures design was performed in 34 ear. Results: First, it was found that only 19.61% of all distributions of the probe fittings by the participants had a mutual correlation of at least 70.00%. Almost 60% of the variance of distributions was explained by 83.33% of the participants, although most probe fittings significantly differed from other fittings based on spectral broadness. Second, significant differences in TEOAE response and especially noise amplitudes between conditions were found. Further, TEOAE response and noise amplitudes between the baseline and experimental conditions were significantly different depending on ringing and spectral flatness of the stimulus. Conclusion: A substantial amount of subjectivity during TEOAE measurements is involved with regard to the evaluation of probe fitting stimulus properties. TEOAE response but especially noise amplitudes are influenced by varying stimulus parameters which stresses the importance of inspecting these parameters prior to or during EOAE measurements. Although more research is needed, some guidelines regarding these parameters are given which could improve the accuracy of TEOAEs in practice.
Keywords
Transient evoked otoacoustic emissions, probe fitting, stimulus properties, Q methodology, accuracy, CANAL STANDING WAVES, CALIBRATION METHOD, SOUND CALIBRATION, LEVEL

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MLA
Keppler, Hannah, et al. “Analysis of Probe Fitting Stimulus Properties on Transient Evoked Otoacoustic Emissions.” INTERNATIONAL JOURNAL OF AUDIOLOGY, 2020.
APA
Keppler, H., Lampo, E., Degeest, S., Botteldooren, D., Vinck, B., & Bockstael, A. (2020). Analysis of probe fitting stimulus properties on transient evoked otoacoustic emissions. INTERNATIONAL JOURNAL OF AUDIOLOGY.
Chicago author-date
Keppler, Hannah, Ellen Lampo, Sofie Degeest, Dick Botteldooren, Bart Vinck, and Annelies Bockstael. 2020. “Analysis of Probe Fitting Stimulus Properties on Transient Evoked Otoacoustic Emissions.” INTERNATIONAL JOURNAL OF AUDIOLOGY.
Chicago author-date (all authors)
Keppler, Hannah, Ellen Lampo, Sofie Degeest, Dick Botteldooren, Bart Vinck, and Annelies Bockstael. 2020. “Analysis of Probe Fitting Stimulus Properties on Transient Evoked Otoacoustic Emissions.” INTERNATIONAL JOURNAL OF AUDIOLOGY.
Vancouver
1.
Keppler H, Lampo E, Degeest S, Botteldooren D, Vinck B, Bockstael A. Analysis of probe fitting stimulus properties on transient evoked otoacoustic emissions. INTERNATIONAL JOURNAL OF AUDIOLOGY. 2020;
IEEE
[1]
H. Keppler, E. Lampo, S. Degeest, D. Botteldooren, B. Vinck, and A. Bockstael, “Analysis of probe fitting stimulus properties on transient evoked otoacoustic emissions,” INTERNATIONAL JOURNAL OF AUDIOLOGY, 2020.
@article{8637391,
  abstract     = {Objective: The objectives of the current study are first, to evaluate the subjective evaluation of probe fitting stimulus properties, and second, to analyse the effects of different probe fittings on transient evoked otoacoustic emission (TEOAE) response and noise amplitudes in subjects.
Design: The Q methodology was used to sort 48 probe fittings differing in stimulus properties in seven categories from totally unacceptable to certainly acceptable. Further, TEOAE response and noise amplitudes were measured in one baseline condition with optimal probe fitting and eight experimental conditions with less than optimal probe fittings.
Study sample: The probe fittings were ranked by 18 participants, while the repeated measures design was performed in 34 ear.
Results: First, it was found that only 19.61% of all distributions of the probe fittings by the participants had a mutual correlation of at least 70.00%. Almost 60% of the variance of distributions was explained by 83.33% of the participants, although most probe fittings significantly differed from other fittings based on spectral broadness. Second, significant differences in TEOAE response and especially noise amplitudes between conditions were found. Further, TEOAE response and noise amplitudes between the baseline and experimental conditions were significantly different depending on ringing and spectral flatness of the stimulus.
Conclusion: A substantial amount of subjectivity during TEOAE measurements is involved with regard to the evaluation of probe fitting stimulus properties. TEOAE response but especially noise amplitudes are influenced by varying stimulus parameters which stresses the importance of inspecting these parameters prior to or during EOAE measurements. Although more research is needed, some guidelines regarding these parameters are given which could improve the accuracy of TEOAEs in practice.},
  author       = {Keppler, Hannah and Lampo, Ellen and Degeest, Sofie and Botteldooren, Dick and Vinck, Bart and Bockstael, Annelies},
  issn         = {1499-2027},
  journal      = {INTERNATIONAL JOURNAL OF AUDIOLOGY},
  keywords     = {Transient evoked otoacoustic emissions,probe fitting,stimulus properties,Q methodology,accuracy,CANAL STANDING WAVES,CALIBRATION METHOD,SOUND CALIBRATION,LEVEL},
  language     = {eng},
  title        = {Analysis of probe fitting stimulus properties on transient evoked otoacoustic emissions},
  url          = {http://dx.doi.org/10.1080/14992027.2019.1656347},
  year         = {2020},
}

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