Three speech sounds, one motor action: Evidence for speech-motor disparity from English flap production

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dc.contributor.authorDerrick, Donald
dc.contributor.authorStavness, I.
dc.contributor.authorGick, B.
dc.date.accessioned2016-02-16T19:50:44Z
dc.date.available2016-02-16T19:50:44Z
dc.date.issued2015en
dc.description.abstractThe assumption that units of speech production bear a one-to-one relationship to speech motor actions pervades otherwise widely varying theories of speech motor behavior. This speech produc- tion and simulation study demonstrates that commonly occurring flap sequences may violate this assumption. In the word “Saturday,” a sequence of three sounds may be produced using a single, cyclic motor action. Under this view, the initial upward tongue tip motion, starting with the first vowel and moving to contact the hard palate on the way to a retroflex position, is under active muscular control, while the downward movement of the tongue tip, including the second contact with the hard palate, results from gravity and elasticity during tongue muscle relaxation. This sequence is reproduced using a three-dimensional computer simulation of human vocal tract biomechanics and differs greatly from other observed sequences for the same word, which employ multiple targeted speech motor actions. This outcome suggests that a goal of a speaker is to produce an entire sequence in a biomechanically efficient way at the expense of maintaining parity within the individual parts of the sequence.en
dc.identifier.citationDerrick, D., Stavness, I., Gick, B. (2015) Three speech sounds, one motor action: Evidence for speech-motor disparity from English flap production. Journal of the Acoustical Society of America, 137(3), pp. 1493-1502.en
dc.identifier.doihttps://doi.org/10.1121/1.4906831
dc.identifier.urihttp://hdl.handle.net/10092/11806
dc.language.isoen
dc.publisherUniversity of Canterbury. New Zealand Institute of Language, Brain & Behaviouren
dc.rights.urihttps://hdl.handle.net/10092/17651
dc.subjectPhoneticsen
dc.subjectArticulatory Phoneticsen
dc.subjectLaboratory Phonologyen
dc.subjectVocal tract simulationen
dc.subject.anzsrcFields of Research::47 - Language, communication and culture::4704 - Linguistics::470410 - Phonetics and speech scienceen
dc.titleThree speech sounds, one motor action: Evidence for speech-motor disparity from English flap productionen
dc.typeJournal Article
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