Focal Manipulations of Formant Trajectories Reveal a Role of Auditory Feedback in the Online Control of Both Within-Syllable and Between-Syllable Speech Timing
Within the human motor repertoire, speech production has a uniquely high level of spatiotemporal complexity. The production of running speech comprises the traversing of spatial positions with precisely coordinated articulator movements to produce 10–15 sounds/s. How does the brain use auditory feed...
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Society for Neuroscience
2012
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| Online Access: | http://hdl.handle.net/1721.1/73040 https://orcid.org/0000-0002-5312-6729 https://orcid.org/0000-0003-3804-7245 https://orcid.org/0000-0002-1418-8580 |
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| author | Ghosh, Satrajit S. Guenther, Frank H. Perkell, Joseph S. Cai, Shanqing |
| author2 | Harvard University--MIT Division of Health Sciences and Technology |
| author_facet | Harvard University--MIT Division of Health Sciences and Technology Ghosh, Satrajit S. Guenther, Frank H. Perkell, Joseph S. Cai, Shanqing |
| author_sort | Ghosh, Satrajit S. |
| collection | MIT |
| description | Within the human motor repertoire, speech production has a uniquely high level of spatiotemporal complexity. The production of running speech comprises the traversing of spatial positions with precisely coordinated articulator movements to produce 10–15 sounds/s. How does the brain use auditory feedback, namely the self-perception of produced speech sounds, in the online control of spatial and temporal parameters of multisyllabic articulation? This question has important bearings on the organizational principles of sequential actions, yet its answer remains controversial due to the long latency of the auditory feedback pathway and technical challenges involved in manipulating auditory feedback in precisely controlled ways during running speech. In this study, we developed a novel technique for introducing time-varying, focal perturbations in the auditory feedback during multisyllabic, connected speech. Manipulations of spatial and temporal parameters of the formant trajectory were tested separately on two groups of subjects as they uttered “I owe you a yo-yo.” Under these perturbations, significant and specific changes were observed in both the spatial and temporal parameters of the produced formant trajectories. Compensations to spatial perturbations were bidirectional and opposed the perturbations. Furthermore, under perturbations that manipulated the timing of auditory feedback trajectory (slow-down or speed-up), significant adjustments in syllable timing were observed in the subjects' productions. These results highlight the systematic roles of auditory feedback in the online control of a highly over-learned action as connected speech articulation and provide a first look at the properties of this type of sensorimotor interaction in sequential movements. |
| first_indexed | 2024-09-23T12:47:22Z |
| format | Article |
| id | mit-1721.1/73040 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T12:47:22Z |
| publishDate | 2012 |
| publisher | Society for Neuroscience |
| record_format | dspace |
| spelling | mit-1721.1/730402022-10-01T11:07:42Z Focal Manipulations of Formant Trajectories Reveal a Role of Auditory Feedback in the Online Control of Both Within-Syllable and Between-Syllable Speech Timing Ghosh, Satrajit S. Guenther, Frank H. Perkell, Joseph S. Cai, Shanqing Harvard University--MIT Division of Health Sciences and Technology Massachusetts Institute of Technology. Research Laboratory of Electronics McGovern Institute for Brain Research at MIT Picower Institute for Learning and Memory Perkell, Joseph S. Ghosh, Satrajit S. Guenther, Frank H. Perkell, Joseph S. Cai, Shanqing Within the human motor repertoire, speech production has a uniquely high level of spatiotemporal complexity. The production of running speech comprises the traversing of spatial positions with precisely coordinated articulator movements to produce 10–15 sounds/s. How does the brain use auditory feedback, namely the self-perception of produced speech sounds, in the online control of spatial and temporal parameters of multisyllabic articulation? This question has important bearings on the organizational principles of sequential actions, yet its answer remains controversial due to the long latency of the auditory feedback pathway and technical challenges involved in manipulating auditory feedback in precisely controlled ways during running speech. In this study, we developed a novel technique for introducing time-varying, focal perturbations in the auditory feedback during multisyllabic, connected speech. Manipulations of spatial and temporal parameters of the formant trajectory were tested separately on two groups of subjects as they uttered “I owe you a yo-yo.” Under these perturbations, significant and specific changes were observed in both the spatial and temporal parameters of the produced formant trajectories. Compensations to spatial perturbations were bidirectional and opposed the perturbations. Furthermore, under perturbations that manipulated the timing of auditory feedback trajectory (slow-down or speed-up), significant adjustments in syllable timing were observed in the subjects' productions. These results highlight the systematic roles of auditory feedback in the online control of a highly over-learned action as connected speech articulation and provide a first look at the properties of this type of sensorimotor interaction in sequential movements. National Science Foundation (U.S.) (Doctoral Dissertation Research Improvement Grant 1051566) National Institutes of Health (U.S.) (Grant R01-DC0001925) National Institutes of Health (U.S.) (Grant R01-DC007683) National Institutes of Health (U.S.) (Grant R56-DC010849) 2012-09-19T14:00:32Z 2012-09-19T14:00:32Z 2011-11 2011-09 Article http://purl.org/eprint/type/JournalArticle 0270-6474 1529-2401 http://hdl.handle.net/1721.1/73040 Cai, S. et al. “Focal Manipulations of Formant Trajectories Reveal a Role of Auditory Feedback in the Online Control of Both Within-Syllable and Between-Syllable Speech Timing.” Journal of Neuroscience 31.45 (2011): 16483–16490. https://orcid.org/0000-0002-5312-6729 https://orcid.org/0000-0003-3804-7245 https://orcid.org/0000-0002-1418-8580 en_US http://dx.doi.org/10.1523/JNEUROSCI.3653-11.2011 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 | Ghosh, Satrajit S. Guenther, Frank H. Perkell, Joseph S. Cai, Shanqing Focal Manipulations of Formant Trajectories Reveal a Role of Auditory Feedback in the Online Control of Both Within-Syllable and Between-Syllable Speech Timing |
| title | Focal Manipulations of Formant Trajectories Reveal a Role of Auditory Feedback in the Online Control of Both Within-Syllable and Between-Syllable Speech Timing |
| title_full | Focal Manipulations of Formant Trajectories Reveal a Role of Auditory Feedback in the Online Control of Both Within-Syllable and Between-Syllable Speech Timing |
| title_fullStr | Focal Manipulations of Formant Trajectories Reveal a Role of Auditory Feedback in the Online Control of Both Within-Syllable and Between-Syllable Speech Timing |
| title_full_unstemmed | Focal Manipulations of Formant Trajectories Reveal a Role of Auditory Feedback in the Online Control of Both Within-Syllable and Between-Syllable Speech Timing |
| title_short | Focal Manipulations of Formant Trajectories Reveal a Role of Auditory Feedback in the Online Control of Both Within-Syllable and Between-Syllable Speech Timing |
| title_sort | focal manipulations of formant trajectories reveal a role of auditory feedback in the online control of both within syllable and between syllable speech timing |
| url | http://hdl.handle.net/1721.1/73040 https://orcid.org/0000-0002-5312-6729 https://orcid.org/0000-0003-3804-7245 https://orcid.org/0000-0002-1418-8580 |
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