Temporal resolution in the hearing system and auditory evoked potentials
3pAB5. Temporal resolution in the hearing system and auditory evoked potentials. Kristian Beedholm Institute of Biology,University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark, beedholm@mail.dk, Lee A. Miller Institute of Biology,University of Southern Denmark, Campusvej 55, 5230 Odense...
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ftsydanskunivpub:oai:sdu.dk:publications/5bb4a970-cb58-11dd-9906-000ea68e967b 2024-05-19T07:41:38+00:00 Temporal resolution in the hearing system and auditory evoked potentials Miller, Lee Beedholm, Kristian 2008 https://portal.findresearcher.sdu.dk/da/publications/5bb4a970-cb58-11dd-9906-000ea68e967b eng eng https://portal.findresearcher.sdu.dk/da/publications/5bb4a970-cb58-11dd-9906-000ea68e967b info:eu-repo/semantics/restrictedAccess Miller , L & Beedholm , K 2008 , ' Temporal resolution in the hearing system and auditory evoked potentials ' , The Journal of the Acoustical Society of America , no. 5 , pp. 3445 . conferenceObject 2008 ftsydanskunivpub 2024-04-24T00:20:45Z 3pAB5. Temporal resolution in the hearing system and auditory evoked potentials. Kristian Beedholm Institute of Biology,University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark, beedholm@mail.dk, Lee A. Miller Institute of Biology,University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark, lee@biology.sdu.dkA popular type of investigation with auditory evoked potentials AEP consists of mapping the dependency of the envelope followingresponse to the AM frequency. This results in what is called the modulation rate transfer function MRTF. The physiologicalinterpretation of the MRTF is not straight forward, but is often used as a measure of the ability of the auditory system to encodetemporal changes. It is, however, shown here that the MRTF must depend on the waveform of the click-evoked AEP ceAEP, whichdoes not relate directly to temporal resolution. The theoretical relationship between the spectrum of the ceAEP and MRTF is such thatthe MRTF should be identical to the ceAEP if a 1"f weighting is applied to the ceAEP. Deviations from this relationship indeed reflecttemporal resolution capabilities.We measured this in a harbour porpoise. Our devised stimulus was a sequence of 0.5 ms Hann weighted130 kHz tone pips presented at an increasing rate chirped over a time span of 32 ms. The results reveal that the system's responsivenessdeclines roughly exponentially as a function of click rate with a rate constant of about -0.7 kHz and appears more rate limited thanimplied by traditional MRTF. Conference Object Harbour porpoise University of Southern Denmark Research Portal |
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University of Southern Denmark Research Portal |
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English |
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3pAB5. Temporal resolution in the hearing system and auditory evoked potentials. Kristian Beedholm Institute of Biology,University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark, beedholm@mail.dk, Lee A. Miller Institute of Biology,University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark, lee@biology.sdu.dkA popular type of investigation with auditory evoked potentials AEP consists of mapping the dependency of the envelope followingresponse to the AM frequency. This results in what is called the modulation rate transfer function MRTF. The physiologicalinterpretation of the MRTF is not straight forward, but is often used as a measure of the ability of the auditory system to encodetemporal changes. It is, however, shown here that the MRTF must depend on the waveform of the click-evoked AEP ceAEP, whichdoes not relate directly to temporal resolution. The theoretical relationship between the spectrum of the ceAEP and MRTF is such thatthe MRTF should be identical to the ceAEP if a 1"f weighting is applied to the ceAEP. Deviations from this relationship indeed reflecttemporal resolution capabilities.We measured this in a harbour porpoise. Our devised stimulus was a sequence of 0.5 ms Hann weighted130 kHz tone pips presented at an increasing rate chirped over a time span of 32 ms. The results reveal that the system's responsivenessdeclines roughly exponentially as a function of click rate with a rate constant of about -0.7 kHz and appears more rate limited thanimplied by traditional MRTF. |
format |
Conference Object |
author |
Miller, Lee Beedholm, Kristian |
spellingShingle |
Miller, Lee Beedholm, Kristian Temporal resolution in the hearing system and auditory evoked potentials |
author_facet |
Miller, Lee Beedholm, Kristian |
author_sort |
Miller, Lee |
title |
Temporal resolution in the hearing system and auditory evoked potentials |
title_short |
Temporal resolution in the hearing system and auditory evoked potentials |
title_full |
Temporal resolution in the hearing system and auditory evoked potentials |
title_fullStr |
Temporal resolution in the hearing system and auditory evoked potentials |
title_full_unstemmed |
Temporal resolution in the hearing system and auditory evoked potentials |
title_sort |
temporal resolution in the hearing system and auditory evoked potentials |
publishDate |
2008 |
url |
https://portal.findresearcher.sdu.dk/da/publications/5bb4a970-cb58-11dd-9906-000ea68e967b |
genre |
Harbour porpoise |
genre_facet |
Harbour porpoise |
op_source |
Miller , L & Beedholm , K 2008 , ' Temporal resolution in the hearing system and auditory evoked potentials ' , The Journal of the Acoustical Society of America , no. 5 , pp. 3445 . |
op_relation |
https://portal.findresearcher.sdu.dk/da/publications/5bb4a970-cb58-11dd-9906-000ea68e967b |
op_rights |
info:eu-repo/semantics/restrictedAccess |
_version_ |
1799481232831021056 |