The University of Southampton
University of Southampton Institutional Repository

Behvioral and physiological correlates of temporal pitch perception in electric and acoustic hearing

Behvioral and physiological correlates of temporal pitch perception in electric and acoustic hearing
Behvioral and physiological correlates of temporal pitch perception in electric and acoustic hearing
In the “4–6” condition of experiment 1, normal-hearing (NH) listeners compared the pitch of a bandpass-filtered pulse train, whose inter-pulse intervals (IPIs) alternated between 4 and 6 ms, to that of isochronous pulse trains. Consistent with previous results obtained at a lower signal level, the pitch of the 4–6 stimulus corresponded to that of an isochronous pulse train having a period of 5.7 ms—longer than the mean IPI of 5 ms. In other conditions the IPI alternated between 3.5–5.5 and 4.5–6.5 ms. Experiment 2 was similar but presented electric pulse trains to one channel of a cochlear implant. In both cases, as overall IPI increased, the pitch of the alternating-interval stimulus approached that of an isochronous train having a period equal to the mean IPI. Experiment 3 measured compound action potentials (CAPs) to alternating-interval stimuli in guinea pigs and in NH listeners. The CAPs to pulses occurring after 4-ms intervals were smaller than responses to pulses occurring after 6-ms intervals, resulting in a modulated pattern that was independent of overall level. The results are compared to the predictions of a simple model incorporating auditory-nerve (AN) refractoriness, and where pitch is estimated from first-order intervals in the AN response.
Carlyon, R.P.
aee00939-d7df-449a-8a31-8620e0713a07
Mahendran, S.
af7d2642-6824-4cd1-b93b-77900e0647c2
Deeks, J.
ffd70020-ccd2-481d-9fe9-332bdafdbd48
Bleeck, S.
c888ccba-e64c-47bf-b8fa-a687e87ec16c
Winter, I.M.
c816c472-68e4-47fb-833d-db8b8d7fde27
Axom, P.
765c3547-224e-4c83-b083-d59437678010
Baguley, D.
6a616b86-56c2-4b4a-bd6f-7cb472865198
Carlyon, R.P.
aee00939-d7df-449a-8a31-8620e0713a07
Mahendran, S.
af7d2642-6824-4cd1-b93b-77900e0647c2
Deeks, J.
ffd70020-ccd2-481d-9fe9-332bdafdbd48
Bleeck, S.
c888ccba-e64c-47bf-b8fa-a687e87ec16c
Winter, I.M.
c816c472-68e4-47fb-833d-db8b8d7fde27
Axom, P.
765c3547-224e-4c83-b083-d59437678010
Baguley, D.
6a616b86-56c2-4b4a-bd6f-7cb472865198

Carlyon, R.P., Mahendran, S., Deeks, J., Bleeck, S., Winter, I.M., Axom, P. and Baguley, D. (2007) Behvioral and physiological correlates of temporal pitch perception in electric and acoustic hearing. 30th Annual MidWinter Research Meeting,, Denver, USA. 09 - 16 Feb 2007.

Record type: Conference or Workshop Item (Paper)

Abstract

In the “4–6” condition of experiment 1, normal-hearing (NH) listeners compared the pitch of a bandpass-filtered pulse train, whose inter-pulse intervals (IPIs) alternated between 4 and 6 ms, to that of isochronous pulse trains. Consistent with previous results obtained at a lower signal level, the pitch of the 4–6 stimulus corresponded to that of an isochronous pulse train having a period of 5.7 ms—longer than the mean IPI of 5 ms. In other conditions the IPI alternated between 3.5–5.5 and 4.5–6.5 ms. Experiment 2 was similar but presented electric pulse trains to one channel of a cochlear implant. In both cases, as overall IPI increased, the pitch of the alternating-interval stimulus approached that of an isochronous train having a period equal to the mean IPI. Experiment 3 measured compound action potentials (CAPs) to alternating-interval stimuli in guinea pigs and in NH listeners. The CAPs to pulses occurring after 4-ms intervals were smaller than responses to pulses occurring after 6-ms intervals, resulting in a modulated pattern that was independent of overall level. The results are compared to the predictions of a simple model incorporating auditory-nerve (AN) refractoriness, and where pitch is estimated from first-order intervals in the AN response.

This record has no associated files available for download.

More information

Published date: 2007
Venue - Dates: 30th Annual MidWinter Research Meeting,, Denver, USA, 2007-02-09 - 2007-02-16
Organisations: Human Sciences Group

Identifiers

Local EPrints ID: 57836
URI: http://eprints.soton.ac.uk/id/eprint/57836
PURE UUID: 5866f160-4d47-42fa-8012-e25aa92681fb
ORCID for S. Bleeck: ORCID iD orcid.org/0000-0003-4378-3394

Catalogue record

Date deposited: 13 Aug 2008
Last modified: 12 Dec 2021 03:33

Export record

Contributors

Author: R.P. Carlyon
Author: S. Mahendran
Author: J. Deeks
Author: S. Bleeck ORCID iD
Author: I.M. Winter
Author: P. Axom
Author: D. Baguley

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×