Haskins Publications

Number	1313
Year	2003
Drawer	25
Entry Date
Authors	Tremblay, S. & Ostry, D.
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Publication	Proceedings of the 15th International Congress of Phonetic Sciences. Barcelona, Spain. August 3-9, 2003. Universitat Autònoma de Barcelona, pp.3133-3136.
url	http://www.haskins.yale.edu/Reprints/HL1313.pdf
Abstract	This paper explores the role of somatosensory input in the achievement of speech targets. In a previous study [3], we showed that somatosensory input, independent of acoustics, plays a fundamental role in determining speech movements. This conclusion was based on the finding that subjects corrected for the effects of a velocity dependent mechancial load that significantly alters jaw kinematics - and hence somatosensory feedback - but has no effect on acoustic output. However, in work to date, the patterns of adaptation that we have observed have been specific to movements involving a vowel-to-vowel transition. To further investigate the latter outcome, the present study explores patterns of adaptation by manipulating the location of the vowel-to-vowel transition within the speech utterance. The present results are consistent with the findings of the previous study: adaptation to a mechanical load is only achieved in portions of speech movements that are associated with a vowel-to-vowel transition.
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