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Electrophysiological and Psychophysical Measures of Temporal Pitch Sensitivity in Normal-hearing Listeners
To obtain combined behavioural and electrophysiological measures of pitch perception, we presented harmonic complexes, bandpass filtered to contain only high-numbered harmonics, to normal-hearing listeners. These stimuli resemble bandlimited pulse trains and convey pitch using a purely temporal code...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer US
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9971391/ https://www.ncbi.nlm.nih.gov/pubmed/36471208 http://dx.doi.org/10.1007/s10162-022-00879-7 |
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author | Guérit, François Harland, Andrew J. Richardson, Matthew L. Gransier, Robin Middlebrooks, John C. Wouters, Jan Carlyon, Robert P. |
author_facet | Guérit, François Harland, Andrew J. Richardson, Matthew L. Gransier, Robin Middlebrooks, John C. Wouters, Jan Carlyon, Robert P. |
author_sort | Guérit, François |
collection | PubMed |
description | To obtain combined behavioural and electrophysiological measures of pitch perception, we presented harmonic complexes, bandpass filtered to contain only high-numbered harmonics, to normal-hearing listeners. These stimuli resemble bandlimited pulse trains and convey pitch using a purely temporal code. A core set of conditions consisted of six stimuli with baseline pulse rates of 94, 188 and 280 pps, filtered into a HIGH (3365–4755 Hz) or VHIGH (7800–10,800 Hz) region, alternating with a 36% higher pulse rate. Brainstem and cortical processing were measured using the frequency following response (FFR) and auditory change complex (ACC), respectively. Behavioural rate change difference limens (DLs) were measured by requiring participants to discriminate between a stimulus that changed rate twice (up-down or down-up) during its 750-ms presentation from a constant-rate pulse train. FFRs revealed robust brainstem phase locking whose amplitude decreased with increasing rate. Moderate-sized but reliable ACCs were obtained in response to changes in purely temporal pitch and, like the psychophysical DLs, did not depend consistently on the direction of rate change or on the pulse rate for baseline rates between 94 and 280 pps. ACCs were larger and DLs lower for stimuli in the HIGH than in the VHGH region. We argue that the ACC may be a useful surrogate for behavioural measures of rate discrimination, both for normal-hearing listeners and for cochlear-implant users. We also showed that rate DLs increased markedly when the baseline rate was reduced to 48 pps, and compared the behavioural and electrophysiological findings to recent cat data obtained with similar stimuli and methods. |
format | Online Article Text |
id | pubmed-9971391 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Springer US |
record_format | MEDLINE/PubMed |
spelling | pubmed-99713912023-03-01 Electrophysiological and Psychophysical Measures of Temporal Pitch Sensitivity in Normal-hearing Listeners Guérit, François Harland, Andrew J. Richardson, Matthew L. Gransier, Robin Middlebrooks, John C. Wouters, Jan Carlyon, Robert P. J Assoc Res Otolaryngol Research Article To obtain combined behavioural and electrophysiological measures of pitch perception, we presented harmonic complexes, bandpass filtered to contain only high-numbered harmonics, to normal-hearing listeners. These stimuli resemble bandlimited pulse trains and convey pitch using a purely temporal code. A core set of conditions consisted of six stimuli with baseline pulse rates of 94, 188 and 280 pps, filtered into a HIGH (3365–4755 Hz) or VHIGH (7800–10,800 Hz) region, alternating with a 36% higher pulse rate. Brainstem and cortical processing were measured using the frequency following response (FFR) and auditory change complex (ACC), respectively. Behavioural rate change difference limens (DLs) were measured by requiring participants to discriminate between a stimulus that changed rate twice (up-down or down-up) during its 750-ms presentation from a constant-rate pulse train. FFRs revealed robust brainstem phase locking whose amplitude decreased with increasing rate. Moderate-sized but reliable ACCs were obtained in response to changes in purely temporal pitch and, like the psychophysical DLs, did not depend consistently on the direction of rate change or on the pulse rate for baseline rates between 94 and 280 pps. ACCs were larger and DLs lower for stimuli in the HIGH than in the VHGH region. We argue that the ACC may be a useful surrogate for behavioural measures of rate discrimination, both for normal-hearing listeners and for cochlear-implant users. We also showed that rate DLs increased markedly when the baseline rate was reduced to 48 pps, and compared the behavioural and electrophysiological findings to recent cat data obtained with similar stimuli and methods. Springer US 2022-12-05 2023-02 /pmc/articles/PMC9971391/ /pubmed/36471208 http://dx.doi.org/10.1007/s10162-022-00879-7 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Research Article Guérit, François Harland, Andrew J. Richardson, Matthew L. Gransier, Robin Middlebrooks, John C. Wouters, Jan Carlyon, Robert P. Electrophysiological and Psychophysical Measures of Temporal Pitch Sensitivity in Normal-hearing Listeners |
title | Electrophysiological and Psychophysical Measures of Temporal Pitch Sensitivity in Normal-hearing Listeners |
title_full | Electrophysiological and Psychophysical Measures of Temporal Pitch Sensitivity in Normal-hearing Listeners |
title_fullStr | Electrophysiological and Psychophysical Measures of Temporal Pitch Sensitivity in Normal-hearing Listeners |
title_full_unstemmed | Electrophysiological and Psychophysical Measures of Temporal Pitch Sensitivity in Normal-hearing Listeners |
title_short | Electrophysiological and Psychophysical Measures of Temporal Pitch Sensitivity in Normal-hearing Listeners |
title_sort | electrophysiological and psychophysical measures of temporal pitch sensitivity in normal-hearing listeners |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9971391/ https://www.ncbi.nlm.nih.gov/pubmed/36471208 http://dx.doi.org/10.1007/s10162-022-00879-7 |
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