Robust Sensorimotor Learning during Variable Sentence-Level Speech

Current Biology : CB
Daniel R LamettiDouglas M Shiller

Abstract

Sensorimotor learning has been studied by altering the sound of the voice in real time as speech is produced. In response to voice alterations, learned changes in production reduce the perceived auditory error and persist for some time after the alteration is removed [1-5]. The results of such experiments have led to the development of prominent models of speech production. This work proposes that the control of speech relies on forward models to predict sensory outcomes of movements, and errors in these predictions drive sensorimotor learning [5-7]. However, sensorimotor learning in speech has only been observed following intensive training on a handful of discrete words or perceptually similar sentences. Stereotyped production does not capture the complex sensorimotor demands of fluid, real-world speech [8-11]. It remains unknown whether talkers predict the sensory consequences of variable sentence production to allow rapid and precise updating of speech motor plans when sensory prediction errors are encountered. Here, we used real-time alterations of speech feedback to test for sensorimotor learning during the production of 50 sentences that varied markedly in length, vocabulary, and grammar. Following baseline production, a...Continue Reading

Citations

Jul 9, 2020·Journal of Speech, Language, and Hearing Research : JSLHR·Kwang S KimLudo Max
Feb 11, 2020·Frontiers in Psychology·Elaine KearneyFrank H Guenther
Mar 3, 2020·The Journal of the Acoustical Society of America·Guillaume BarbierDouglas M Shiller
Jan 31, 2021·The Journal of the Acoustical Society of America·Sarah Bakst, Caroline A Niziolek
Jan 1, 2021·The Journal of the Acoustical Society of America·Daniel R Nault, Kevin G Munhall
Jan 1, 2021·The Journal of the Acoustical Society of America·Hardik KothareSrikantan S Nagarajan
Dec 29, 2020·Journal of Neurophysiology·Benjamin Parrell, Caroline A Niziolek
Mar 1, 2021·The Journal of the Acoustical Society of America·Inez RaharjoJohn F Houde
Jul 27, 2021·Journal of Speech, Language, and Hearing Research : JSLHR·Robin KarlinBenjamin Parrell
Sep 3, 2021·The Journal of the Acoustical Society of America·Guillaume BarbierDouglas M Shiller
Oct 22, 2021·PloS One·Abigail R Bradshaw, Carolyn McGettigan

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