A single exposure to altered auditory feedback causes observable sensorimotor adaptation in speech

Abstract
Data availability
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Abstract

Sensory errors induce two types of behavioral changes: rapid compensation within a movement and longer-term adaptation of subsequent movements. Although adaptation is hypothesized to occur whenever a sensory error is perceived (including after a single exposure to altered feedback), adaptation of articulatory movements in speech has only been observed after repeated exposure to auditory perturbations, questioning both current theories of speech sensorimotor adaptation as well as the universality of more general theories of adaptation. We measured single-exposure or 'one-shot' learning in a large dataset in which participants were exposed to intermittent, unpredictable perturbations of their speech acoustics. On unperturbed trials immediately following these perturbed trials, participants adjusted their speech to oppose the preceding shift, demonstrating that learning occurs even after a single exposure to auditory error. These results provide critical support for current theories of sensorimotor adaptation in speech and align speech more closely with learning in other motor domains.

Data availability

Data and analysis code are available on GitHub at https://github.com/blab-lab/postMan.

The following data sets were generated

(2021) A single exposure to altered auditory feedback causes observable sensorimotor adaptation in speech
GitHub.

https://github.com/blab-lab/postMan

Article and author information

Author details

Lana Hantzsch

Waisman Center, University of Wisconsin-Madison, Madison, United States

Competing interests
The authors declare that no competing interests exist.
Benjamin Parrell

Department of Communication Sciences and Disorders, University of Wisconsin-Madison, Madison, United States

For correspondence
bparrell@wisc.edu

Competing interests
The authors declare that no competing interests exist.

"This ORCID iD identifies the author of this article:" 0000-0003-2610-2884
Caroline A Niziolek

Department of Communication Sciences and Disorders, University of Wisconsin-Madison, Madison, United States

For correspondence
cniziolek@wisc.edu

Competing interests
The authors declare that no competing interests exist.

"This ORCID iD identifies the author of this article:" 0000-0002-6085-1371

Funding

National Institutes of Health (DC014520)

Caroline A Niziolek

National Institutes of Health (DC017091)

Benjamin Parrell

The funders had no role in study design, data collection and interpretation, or the decision to submit the work for publication.

Ethics

Human subjects: Informed consent and consent to publish was obtained for all participants. The experimental protocols were approved by the Institutional Review Board of the institutions from which data were collected: the University of Wisconsin-Madison, the Massachusetts Institute of Technology, the University of California, San Francisco, and the University of California, Berkeley. The University of Wisconsin-Madison Minimal Risk Research IRB approved our procedures to analyze the previously collected data (MRR IRB 2017-1509).

Copyright

This article is distributed under the terms of the Creative Commons Attribution License permitting unrestricted use and redistribution provided that the original author and source are credited.