A given speech sound will be realized differently depending on the context in which it is produced. Listeners have been found to compensate perceptually for these coarticulatory effects, yet it is unclear to what extent this effect depends on actual production experience. In this study, whether changes in motor-to-sound mappings induced by adaptation to altered auditory feedback can affect perceptual compensation for coarticulation is investigated. Specifically, whether altering how the vowel [i] is produced can affect the categorization of a stimulus continuum between an alveolar and a palatal fricative whose interpretation is dependent on vocalic context is tested. It was found that participants could be sorted into three groups based on whether they tended to oppose the direction of the shifted auditory feedback, to follow it, or a mixture of the two, and that these articulatory responses, not the shifted feedback the participants heard, correlated with changes in perception. These results indicate that sensorimotor adaptation to altered feedback can affect the perception of unaltered yet coarticulatorily-dependent speech sounds, suggesting a modulatory role of sensorimotor experience on speech perception.
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April 2017
April 14 2017
Sensorimotor adaptation affects perceptual compensation for coarticulation
William L. Schuerman;
William L. Schuerman
a)
Max Planck Institute for Psycholinguistics
, Nijmegen, the Netherlands
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Srikantan Nagarajan;
Srikantan Nagarajan
Department of Radiology,
University of California–San Francisco School of Medicine
, San Francisco, California 94143, USA
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James M. McQueen;
James M. McQueen
b)
Radboud University
, Nijmegen, the Netherlands
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John Houde
John Houde
Department of Otolaryngology Head and Neck Surgery,
University of California–San Francisco School of Medicine
, San Francisco, California 94143, USA
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a)
Electronic mail: [email protected]
b)
Also at: Max Planck Institute for Psycholinguistics, Nijmegen, the Netherlands.
J. Acoust. Soc. Am. 141, 2693–2704 (2017)
Article history
Received:
October 26 2016
Accepted:
March 23 2017
Citation
William L. Schuerman, Srikantan Nagarajan, James M. McQueen, John Houde; Sensorimotor adaptation affects perceptual compensation for coarticulation. J. Acoust. Soc. Am. 1 April 2017; 141 (4): 2693–2704. https://doi.org/10.1121/1.4979791
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