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    Learning and adaptation in speech production without a vocal tract

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    This 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 license, and indicate if changes were made.
    Date Issued
    2019-12
    Publisher Version
    10.1038/s41598-019-49074-4
    Author(s)
    Thompson, Megan M. C.
    Houde, John F.
    Nagarajan, Srikantan S.
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    Permanent Link
    https://hdl.handle.net/2144/40095
    Version
    Published version
    Citation (published version)
    Megan MC Thompson, John F Houde, Srikantan S Nagarajan. 2019. "Learning and adaptation in speech production without a vocal tract." Scientific Reports, Volume 9, Issue 1, https://doi.org/10.1038/s41598-019-49074-4
    Abstract
    How is the complex audiomotor skill of speaking learned? To what extent does it depend on the specific characteristics of the vocal tract? Here, we developed a touchscreen-based speech synthesizer to examine learning of speech production independent of the vocal tract. Participants were trained to reproduce heard vowel targets by reaching to locations on the screen without visual feedback and receiving endpoint vowel sound auditory feedback that depended continuously on touch location. Participants demonstrated learning as evidenced by rapid increases in accuracy and consistency in the production of trained targets. This learning generalized to productions of novel vowel targets. Subsequent to learning, sensorimotor adaptation was observed in response to changes in the location-sound mapping. These findings suggest that participants learned adaptable sensorimotor maps allowing them to produce desired vowel sounds. These results have broad implications for understanding the acquisition of speech motor control.
    Rights
    This 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 license, and indicate if changes were made.
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    • SAR: Speech, Language & Hearing Sciences: Scholarly Papers [66]
    • BU Open Access Articles [4833]


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