Test person operated 2-Alternative Forced Choice Audiometry compared to traditional audiometry

Publikation: Konferencebidrag uden forlag/tidsskriftPosterForskning

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Resumé

 

Background:

With a newly developed technique, hearing thresholds can be estimated with a system operated by the test persons themselves. This technique is based on the 2 Alternative Forced Choice paradigm known from the psychoacoustic research theory. Test persons can operate the system very easily themselves. Furthermore the system uses the theories behind the methods of maximum-likelihood fitting of the most probable psychometric function and a modification of the well known up-down methods in the estimation of the hearing thresholds. The combination of the 2AFC paradigm and the maximum-likelihood and up-down methods has proven effective and reliable even under suboptimal test settings. In non-optimal testing conditions i.e. as a part of a hearing conservation programme the headphone Sennheiser HDA-200 has been used as it contains hearing protection. This test-method has been validated as a comparison with traditional audiometry. A series of 30 persons (60 ears) have conducted traditional audiometry as well as self-operated 2AFC-audiometry. Test subjects are normal as well as moderately hearing impaired people. The different thresholds are compared.

 

Results:

2 AFC Audiometry is reliable and comparable to traditional audiometry. 2AFC audiometry tends to give thresholds 1-2 dB lower compared to traditional audiometry. In general standard deviations between the two test methods are below 4.5 dB for frequencies from (250-4000 Hz) and up to 6.7 dB for frequencies above 4000 Hz. Results from test-retest studies of 2AFC audiometry are comparable to test-retest results known from traditional audiometry under standard clinical settings.

 

Conclusions

2 Alternative Forced Choice audiometry can be a reliable alternative to traditional audiometry especially under certain circumstances, where it can be difficult to get skilled technical assistance to conduct the audiometry.

OriginalsprogEngelsk
Publikationsdato2009
StatusUdgivet - 2009
BegivenhedInternational Symposium on Auditory and Audiological Research -ISAAR 2009- Binaural processing and spatial hearing - Helsingør, Danmark
Varighed: 26. aug. 200928. aug. 2009
Konferencens nummer: 23

Konference

KonferenceInternational Symposium on Auditory and Audiological Research -ISAAR 2009- Binaural processing and spatial hearing
Nummer23
LandDanmark
ByHelsingør
Periode26/08/200928/08/2009

Fingeraftryk

Hearing
Psychoacoustics
Psychometrics
Research

Emneord

  • audiologi
  • hørelse

Citer dette

Schmidt, J. H., Brandt, C., Christensen-Dalsgaard, J., Andersen, T., Bælum, J., & Poulsen, T. (2009). Test person operated 2-Alternative Forced Choice Audiometry compared to traditional audiometry. Poster session præsenteret på International Symposium on Auditory and Audiological Research -ISAAR 2009- Binaural processing and spatial hearing, Helsingør, Danmark.
Schmidt, Jesper Hvass ; Brandt, Christian ; Christensen-Dalsgaard, Jakob ; Andersen, Ture ; Bælum, Jesper ; Poulsen, Torben. / Test person operated 2-Alternative Forced Choice Audiometry compared to traditional audiometry. Poster session præsenteret på International Symposium on Auditory and Audiological Research -ISAAR 2009- Binaural processing and spatial hearing, Helsingør, Danmark.
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Schmidt, JH, Brandt, C, Christensen-Dalsgaard, J, Andersen, T, Bælum, J & Poulsen, T 2009, 'Test person operated 2-Alternative Forced Choice Audiometry compared to traditional audiometry' International Symposium on Auditory and Audiological Research -ISAAR 2009- Binaural processing and spatial hearing, Helsingør, Danmark, 26/08/2009 - 28/08/2009, .

Test person operated 2-Alternative Forced Choice Audiometry compared to traditional audiometry. / Schmidt, Jesper Hvass; Brandt, Christian ; Christensen-Dalsgaard, Jakob; Andersen, Ture; Bælum, Jesper; Poulsen, Torben.

2009. Poster session præsenteret på International Symposium on Auditory and Audiological Research -ISAAR 2009- Binaural processing and spatial hearing, Helsingør, Danmark.

Publikation: Konferencebidrag uden forlag/tidsskriftPosterForskning

TY - CONF

T1 - Test person operated 2-Alternative Forced Choice Audiometry compared to traditional audiometry

AU - Schmidt, Jesper Hvass

AU - Brandt, Christian

AU - Christensen-Dalsgaard, Jakob

AU - Andersen, Ture

AU - Bælum, Jesper

AU - Poulsen, Torben

N1 - Titel på proceedings: Binaural Processing and Spatial Hearing

PY - 2009

Y1 - 2009

N2 -   Background:With a newly developed technique, hearing thresholds can be estimated with a system operated by the test persons themselves. This technique is based on the 2 Alternative Forced Choice paradigm known from the psychoacoustic research theory. Test persons can operate the system very easily themselves. Furthermore the system uses the theories behind the methods of maximum-likelihood fitting of the most probable psychometric function and a modification of the well known up-down methods in the estimation of the hearing thresholds. The combination of the 2AFC paradigm and the maximum-likelihood and up-down methods has proven effective and reliable even under suboptimal test settings. In non-optimal testing conditions i.e. as a part of a hearing conservation programme the headphone Sennheiser HDA-200 has been used as it contains hearing protection. This test-method has been validated as a comparison with traditional audiometry. A series of 30 persons (60 ears) have conducted traditional audiometry as well as self-operated 2AFC-audiometry. Test subjects are normal as well as moderately hearing impaired people. The different thresholds are compared. Results:2 AFC Audiometry is reliable and comparable to traditional audiometry. 2AFC audiometry tends to give thresholds 1-2 dB lower compared to traditional audiometry. In general standard deviations between the two test methods are below 4.5 dB for frequencies from (250-4000 Hz) and up to 6.7 dB for frequencies above 4000 Hz. Results from test-retest studies of 2AFC audiometry are comparable to test-retest results known from traditional audiometry under standard clinical settings. Conclusions2 Alternative Forced Choice audiometry can be a reliable alternative to traditional audiometry especially under certain circumstances, where it can be difficult to get skilled technical assistance to conduct the audiometry.

AB -   Background:With a newly developed technique, hearing thresholds can be estimated with a system operated by the test persons themselves. This technique is based on the 2 Alternative Forced Choice paradigm known from the psychoacoustic research theory. Test persons can operate the system very easily themselves. Furthermore the system uses the theories behind the methods of maximum-likelihood fitting of the most probable psychometric function and a modification of the well known up-down methods in the estimation of the hearing thresholds. The combination of the 2AFC paradigm and the maximum-likelihood and up-down methods has proven effective and reliable even under suboptimal test settings. In non-optimal testing conditions i.e. as a part of a hearing conservation programme the headphone Sennheiser HDA-200 has been used as it contains hearing protection. This test-method has been validated as a comparison with traditional audiometry. A series of 30 persons (60 ears) have conducted traditional audiometry as well as self-operated 2AFC-audiometry. Test subjects are normal as well as moderately hearing impaired people. The different thresholds are compared. Results:2 AFC Audiometry is reliable and comparable to traditional audiometry. 2AFC audiometry tends to give thresholds 1-2 dB lower compared to traditional audiometry. In general standard deviations between the two test methods are below 4.5 dB for frequencies from (250-4000 Hz) and up to 6.7 dB for frequencies above 4000 Hz. Results from test-retest studies of 2AFC audiometry are comparable to test-retest results known from traditional audiometry under standard clinical settings. Conclusions2 Alternative Forced Choice audiometry can be a reliable alternative to traditional audiometry especially under certain circumstances, where it can be difficult to get skilled technical assistance to conduct the audiometry.

KW - audiologi

KW - hørelse

KW - audiology

KW - hearing

M3 - Poster

ER -

Schmidt JH, Brandt C, Christensen-Dalsgaard J, Andersen T, Bælum J, Poulsen T. Test person operated 2-Alternative Forced Choice Audiometry compared to traditional audiometry. 2009. Poster session præsenteret på International Symposium on Auditory and Audiological Research -ISAAR 2009- Binaural processing and spatial hearing, Helsingør, Danmark.