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Permanent URI for this collectionhttps://eresearch.qmu.ac.uk/handle/20.500.12289/22
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Item The effects of syllable and utterance position on tongue shape and gestural magnitude in /l/ and /r/(International Phonetic Association, 2019-08-10) Lawson, Eleanor; Leplatre, Gregory; Stuart-Smith, Jane; Scobbie, James M.This paper is an ultrasound-based articulatory study of the impact of syllable-position and utterance position on tongue shape and tongue-gesture magnitude in liquid consonants in American, Irish and Scottish English. Mixed effects modelling was used to analyse variation in normalised tongue-gesture magnitude for /r/ and /l/ in syllable-onset and coda position and in utterance-initial, medial and final position. Variation between onset and coda mean midsagittal tongue surfaces was also quantified using normalised root-mean-square distances, and patterns of articulatory onset-coda allophony were identified. Despite the fact that some speakers in all varieties used tip-up /r/ in syllable-onset position and bunched /r/ in coda position, RMS distance results show greater degrees of similarity between onset and coda /r/ than between onset and coda /l/. Gesture magnitude was significantly reduced for both /l/ and /r/ in coda position. Utterance position had a significant effect on /l/ only.Item The effects of syllable and sentential position on the timing of lingual gestures in /l/ and /r/(International Phonetic Association, 2019-08-10) Lawson, Eleanor; Stuart-Smith, JaneThis paper is an ultrasound-based articulatory study of the impact of syllable-position and utterance position on gesture timing in liquid consonants in American, Irish and Scottish English. Mixed effects modelling was used to analyse variation in the relative timing of the anterior and posterior lingual gestures for /l/ and /r/ in syllable-onset and coda position and in utterance-initial, medial and final position. Results showed that the component lingual gestures for /l/ and /r/ are coordinated differently in onsets and codas, across the three varieties studied; the anterior lingual gesture tends to precede the posterior gesture in syllable-onset liquids, while this gesture order is reversed for syllable-coda liquids. For /l/, but not /r/, being in utterance-initial and final position results in a significantly increased temporal distance between the two lingual gestures. For coda /r/, prerhotic vowels were found to have a significant impact on the relative timing of lingual gestures.Item Looking variation and change in the mouth: developing the sociolinguistic potential of Ultrasound Tongue Imaging.(Queen Margaret University, 2008-06) Scobbie, James M.; Stuart-Smith, Jane; Lawson, Eleanor; ESRCThe central goal of this project is to meet a pressing need: to enable the investigation of how speakers from anywhere on a socio-dialectal spectrum physically articulate speech.