Spatiotemporal representation of the pitch of harmonic complex tones in auditory nerve
The pitch of harmonic complex tones plays an important role in speech and music perception and the analysis of auditory scenes, yet traditional rate–place and temporal models for pitch processing provide only an incomplete description of the psychophysical data. To test physiologically a model based...
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| Format: | Article |
| Language: | en_US |
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Society for Neuroscience
2011
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| Online Access: | http://hdl.handle.net/1721.1/64796 https://orcid.org/0000-0003-1349-9608 |
| _version_ | 1826211185686478848 |
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| author | Cedolin, Leonardo Delgutte, Bertrand |
| author2 | Harvard University--MIT Division of Health Sciences and Technology |
| author_facet | Harvard University--MIT Division of Health Sciences and Technology Cedolin, Leonardo Delgutte, Bertrand |
| author_sort | Cedolin, Leonardo |
| collection | MIT |
| description | The pitch of harmonic complex tones plays an important role in speech and music perception and the analysis of auditory scenes, yet traditional rate–place and temporal models for pitch processing provide only an incomplete description of the psychophysical data. To test physiologically a model based on spatiotemporal pitch cues created by the cochlear traveling wave (Shamma, 1985), we recorded from single fibers in the auditory nerve of anesthetized cat in response to harmonic complex tones with missing fundamentals and equal-amplitude harmonics. We used the principle of scaling invariance in cochlear mechanics to infer the spatiotemporal response pattern to a given stimulus from a series of measurements made in a single fiber as a function of fundamental frequency F0. We found that spatiotemporal cues to resolved harmonics are available for F0 values between 350 and 1100 Hz and that these cues are more robust than traditional rate–place cues at high stimulus levels. The lower F0 limit is determined by the limited frequency selectivity of the cochlea, whereas the upper limit is caused by the degradation of phase locking to the stimulus fine structure at high frequencies. The spatiotemporal representation is consistent with the upper F0 limit to the perception of the pitch of complex tones with a missing fundamental, and its effectiveness does not depend on the relative phase between resolved harmonics. The spatiotemporal representation is thus consistent with key trends in human psychophysics. |
| first_indexed | 2024-09-23T15:01:56Z |
| format | Article |
| id | mit-1721.1/64796 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T15:01:56Z |
| publishDate | 2011 |
| publisher | Society for Neuroscience |
| record_format | dspace |
| spelling | mit-1721.1/647962022-10-02T00:05:55Z Spatiotemporal representation of the pitch of harmonic complex tones in auditory nerve Cedolin, Leonardo Delgutte, Bertrand Harvard University--MIT Division of Health Sciences and Technology Massachusetts Institute of Technology. Research Laboratory of Electronics Delgutte, Bertrand Cedolin, Leonardo Delgutte, Bertrand The pitch of harmonic complex tones plays an important role in speech and music perception and the analysis of auditory scenes, yet traditional rate–place and temporal models for pitch processing provide only an incomplete description of the psychophysical data. To test physiologically a model based on spatiotemporal pitch cues created by the cochlear traveling wave (Shamma, 1985), we recorded from single fibers in the auditory nerve of anesthetized cat in response to harmonic complex tones with missing fundamentals and equal-amplitude harmonics. We used the principle of scaling invariance in cochlear mechanics to infer the spatiotemporal response pattern to a given stimulus from a series of measurements made in a single fiber as a function of fundamental frequency F0. We found that spatiotemporal cues to resolved harmonics are available for F0 values between 350 and 1100 Hz and that these cues are more robust than traditional rate–place cues at high stimulus levels. The lower F0 limit is determined by the limited frequency selectivity of the cochlea, whereas the upper limit is caused by the degradation of phase locking to the stimulus fine structure at high frequencies. The spatiotemporal representation is consistent with the upper F0 limit to the perception of the pitch of complex tones with a missing fundamental, and its effectiveness does not depend on the relative phase between resolved harmonics. The spatiotemporal representation is thus consistent with key trends in human psychophysics. National Institutes of Health (U.S.) (grant R01 DC002258 ) National Institutes of Health (U.S.) (grant P30 DC005209) 2011-07-13T19:10:44Z 2011-07-13T19:10:44Z 2010-09 2009-12 Article http://purl.org/eprint/type/JournalArticle 0270-6474 1529-2401 http://hdl.handle.net/1721.1/64796 Cedolin, Leonardo and Betrand Delgutte "Spatiotemporal Representation of the Pitch of Harmonic Complex Tones in the Auditory Nerve." The Journal of Neuroscience, 22 September 2010, 30(38): 12712-12724. 20861376 https://orcid.org/0000-0003-1349-9608 en_US http://dx.doi.org/10.1523/jneurosci.6365-09.2010 Journal of Neuroscience Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf Society for Neuroscience SFN |
| spellingShingle | Cedolin, Leonardo Delgutte, Bertrand Spatiotemporal representation of the pitch of harmonic complex tones in auditory nerve |
| title | Spatiotemporal representation of the pitch of harmonic complex tones in auditory nerve |
| title_full | Spatiotemporal representation of the pitch of harmonic complex tones in auditory nerve |
| title_fullStr | Spatiotemporal representation of the pitch of harmonic complex tones in auditory nerve |
| title_full_unstemmed | Spatiotemporal representation of the pitch of harmonic complex tones in auditory nerve |
| title_short | Spatiotemporal representation of the pitch of harmonic complex tones in auditory nerve |
| title_sort | spatiotemporal representation of the pitch of harmonic complex tones in auditory nerve |
| url | http://hdl.handle.net/1721.1/64796 https://orcid.org/0000-0003-1349-9608 |
| work_keys_str_mv | AT cedolinleonardo spatiotemporalrepresentationofthepitchofharmoniccomplextonesinauditorynerve AT delguttebertrand spatiotemporalrepresentationofthepitchofharmoniccomplextonesinauditorynerve |