Transfer of Learning: What Does It Tell Us About Speech Production Units? Purpose Words, syllables, and phonemes have each been regarded as basic encoding units of speech production in various psycholinguistic models. The present article investigates the role of each unit in the interface with speech articulation, using a paradigm from motor control research. Method Seventy-six native speakers of French ... Research Article
Research Article  |   July 13, 2018
Transfer of Learning: What Does It Tell Us About Speech Production Units?
 
Author Affiliations & Notes
  • Tiphaine Caudrelier
    UCNRS, Grenoble INP, GIPSA-lab, Institute of Engineering, University Grenoble Alpes, France
  • Jean-Luc Schwartz
    UCNRS, Grenoble INP, GIPSA-lab, Institute of Engineering, University Grenoble Alpes, France
  • Pascal Perrier
    UCNRS, Grenoble INP, GIPSA-lab, Institute of Engineering, University Grenoble Alpes, France
  • Silvain Gerber
    UCNRS, Grenoble INP, GIPSA-lab, Institute of Engineering, University Grenoble Alpes, France
  • Amélie Rochet-Capellan
    UCNRS, Grenoble INP, GIPSA-lab, Institute of Engineering, University Grenoble Alpes, France
  • Disclosure: The authors have declared that no competing interests existed at the time of publication.
    Disclosure: The authors have declared that no competing interests existed at the time of publication. ×
  • Correspondence to Tiphaine Caudrelier: tiphaine.caudrelier@gipsa-lab.fr
  • Editor-in-Chief: Julie Liss
    Editor-in-Chief: Julie Liss×
  • Editor: Bharath Chandrasekaran
    Editor: Bharath Chandrasekaran×
Article Information
Speech, Voice & Prosody / Speech / Research Articles
Research Article   |   July 13, 2018
Transfer of Learning: What Does It Tell Us About Speech Production Units?
Journal of Speech, Language, and Hearing Research, July 2018, Vol. 61, 1613-1625. doi:10.1044/2018_JSLHR-S-17-0130
History: Received April 23, 2017 , Revised October 13, 2017 , Accepted March 22, 2018
 
Journal of Speech, Language, and Hearing Research, July 2018, Vol. 61, 1613-1625. doi:10.1044/2018_JSLHR-S-17-0130
History: Received April 23, 2017; Revised October 13, 2017; Accepted March 22, 2018

Purpose Words, syllables, and phonemes have each been regarded as basic encoding units of speech production in various psycholinguistic models. The present article investigates the role of each unit in the interface with speech articulation, using a paradigm from motor control research.

Method Seventy-six native speakers of French were trained to change their production of /be/ in response to an auditory feedback perturbation (auditory–motor learning). We then assessed the magnitude of learning transfer from /be/ to the syllables in 2 pseudowords (/bepe/ and /pebe/) and 1 real word (/bebe/) as well as the aftereffect on the same utterance (/be/) with a between-subjects design. This made it possible to contrast the amplitude of transfer at the levels of the utterance, the syllable, and the phoneme, depending on the position in the word. Linear mixed models allowed us to study the amplitude as well as the dynamics of the transfer and the aftereffect over trials.

Results Transfer from the training utterance /be/ was observed for all vowels of the test utterances but was larger to the syllable /be/ than to the syllable /pe/ at word-initial position and larger to the 1st syllable than to the 2nd syllable in the utterance.

Conclusions Our study suggests that words, syllables, and phonemes may all contribute to the definition of speech motor commands. In addition, the observation of a serial order effect raises new questions related to the connection between psycholinguistic models and speech motor control approaches.

Acknowledgments
The research leading to these results has received funding from the European Research Council under the European Community's Seventh Framework Program (FP7/2007-2013, Grant 339152) awarded to Jean-Luc Schwartz.
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