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Permanent URI for this collectionhttps://eresearch.qmu.ac.uk/handle/20.500.12289/22

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English (Scottish) speech development
(Oxford University Press, 2024) Scobbie, James M.; Cleland, Joanne; Lawson, Eleanor; Schaeffler, Sonja; McLeod, Sharynne
Scottish English is primarily spoken in Scotland, U.K. It is a national quasi-standard variety of English with a range of social and geographical variants. It can be characterized as a highly distinctive accent (or accent group) of English, mainly due to its relationship to Scots. Its strongly distinct character may be more phonetic, prosodic and lexical than strictly phonemic and phonological, so for practical reasons it can be assumed that its inventory and consonant phonotactics overlap sufficiently with other varieties for many “British English” clinical resources to be applicable. Scottish English is, however, rhotic in its prestige varieties, which makes it markedly different from non-rhotic Southern Standard British English and other non-rhotic varieties. There are few specific studies of children’s acquisition of Scottish English, though Scottish children are often incorporated in larger studies in the U.K. Research on Scottish English has focused on social variation, speech production, and remediation techniques augmented with real time visual biofeedback, involving children with speech sound disorders and cleft palate. Commonly-used speech assessments and interventions have not been developed specifically for this variety of English.
Lenition and fortition of /r/ in utterance-final position, an ultrasound tongue imaging study of lingual gesture timing in spontaneous speech
(Elsevier, 2021-04-16) Lawson, Eleanor; Stuart-Smith, Jane; Taehong Cho
The most fundamental division in English dialects is the rhotic/non-rhotic division. The mechanisms of historical /r/-loss sound change are not well understood, but studying a contemporary /r/-loss sound change in a rhotic variety of English can provide new insights. We know that /r/ weakening in contemporary Scottish English is a gesture-timing based phenomenon and that it is socially indexical, but we have no phonetic explanation for the predominance of weak /r/ variants in utterance-final position. Using a socially-stratified conversational ultrasound tongue imaging speech corpus, this study investigates the effects of boundary context, along with other linguistic and social factors such as syllable stress, following-consonant place and social class, on lingual gesture timing in /r/ and strength of rhoticity. Mixed-effects modelling identified that utterance-final context conditions greater anterior lingual gesture delay in /r/ and weaker-sounding /r/s, but only in working-class speech. Middle-class speech shows no anterior lingual gesture delay for /r/ in utterance-final position and /r/ is audibly strengthened in this position. It is unclear whether this divergence is due to variation in underlying tongue shape for /r/ in these social-class communities, or whether utterance-final position provides a key location for the performance of social class using salient variants of /r/.
A comparison of acoustic and articulatory parameters for the GOOSE vowel across British Isles Englishes
(Acoustical Society of America, 2019-12-19) Lawson, Eleanor; Stuart-Smith, Jane; Rodger, Lydia
This study quantifies vocalic variation that cannot be measured from the acoustic signal alone and develops methods of standardisation and measurement of articulatory parameters for vowels. Articulatory-acoustic variation in the GOOSE vowel was measured across three regional accents of the British Isles, using a total of eighteen speakers from the Republic of Ireland, Scotland and England, recorded with synchronous ultrasound tongue imaging, lip camera and audio. Single co-temporal measures were taken of tongue-body height and backness, lip protrusion, F1 and F2. After normalisation, mixed-effects modelling identified statistically-significant variation for region; tongue-body position was significantly higher and fronter for Irish and English speakers. Region was also significant for lip-protrusion measures, with Scottish speakers showing significantly smaller degrees of protrusion than English speakers. However, Region was only significant for acoustic height and not for frontness.Correlational analyses of all measures showed: a significant positive correlation between tongue-body height and acoustic height; a negative correlation between lip-protrusion and acoustic frontness; but no correlation between tongue-body frontness and acoustic frontness. Effectively, two distinct regional production strategies were found to result in similar normalised acoustic frontness measures for GOOSE: Scottish tongue-body positions were backer and lips less protruded, while English and Irish speakers had fronter tongue-body positions, but more protruded lips.
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.
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, Jane
This 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.
A single case study of articulatory adaptation during acoustic mimicry
(2011-08) Lawson, Eleanor; Scobbie, James M.; Stuart-Smith, Jane; ESRC
The distribution of fine-grained phonetic variation can be observed in the speech of members of well-defined social groups. It is evident that such variation must somehow be able to propagate through a speech community from speaker to hearer. However, technological barriers have meant that close and direct study of the articulatory links of this speaker-hearer chain has not, to date, been possible. We present the results of a single-case study using an ultrasound-based method to investigate temporal and configurational lingual adaptation during mimicry. Our study focuses on allophonic variants of postvocalic /r/ found in speech from Central Scotland. Our results show that our informant was able to adjust tongue gesture timing towards that of the stimulus, but did not alter tongue configuration.
The social stratification of tongue shape for postvocalic /r/ in Scottish English
(Blackwell Publishing Ltd., 2011-04-20) Lawson, Eleanor; Scobbie, James M.; Stuart-Smith, Jane; ESRC
The sociolinguistic modelling of phonological variation and change is almost exclusively based on auditory and acoustic analyses of speech. One phenomenon which has proved elusive when considered in these ways is the variation in postvocalic /r/ in Scottish English. This study therefore shifts to speech production: we present a socioarticulatory study of variation of postvocalic /r/ in CVr words, using a socially-stratified ultrasound tongue imaging corpus of speech collected in eastern central Scotland in 2008. Our results show social stratification of /r/ at the articulatory level, with middle-class speakers using bunched articulations, while working-class speakers use greater proportions of tongue-tip and tongue-front raised variants. Unlike articulatory variation of /r/ in American English, the articulatory variants in our Scottish English corpus are both auditorily distinct from one another, and correlate with strong and weak ends of an auditory rhotic continuum, which also shows clear social stratification.
The role of anterior lingual gesture delay in coda /r/ lenition: An ultrasound tongue imaging study
(International Phonetic Association, 2015-08-15) Lawson, Eleanor; Scobbie, James M.; Stuart-Smith, Jane
We investigate the contribution that lingual gesture delay makes to lenition of postvocalic /r/. This study uses a socially-stratified, audio-ultrasound corpus of Scottish English containing recordings from two sociolects; one with postvocalic /r/ weakening and the other with strengthening. We quantify auditory strength of rhoticity and the timing of the anterior lingual gesture relative to the offset of voicing in CVr words: bar, bore, fur, or onset of a following consonant in CVrC words: farm, herb, burp, in order to show that there is a statistically significant correlation between weak rhoticity and a late articulatory gesture. Our ultrasound data also show that during the process of final consonant vocalization/deletion, underlying articulatory gestures may persist.
Seeing Speech: an articulatory web resource for the study of phonetics [website]
(University of Glasgow, 2015-04-01) Lawson, Eleanor; Stuart-Smith, Jane; Scobbie, James M.; Nakai, Satsuki; Beavan, David; Edmonds, Fiona; Edmonds, Iain; Turk, Alice; Timmins, Claire; Beck, Janet M.; Esling, John; Leplatre, Gregory; Cowen, Steve; Barras, Will; Durham, Mercedes
Seeing Speech (www.seeingspeech.ac.uk) is a web-based audiovisual resource which provides teachers and students of Practical Phonetics with ultrasound tongue imaging (UTI) video of speech, magnetic resonance imaging (MRI) video of speech and 2D midsagittal head animations based on MRI and UTI data. The model speakers are Dr Janet Beck of Queen Margaret University (Scotland) and Dr John Esling of University of Victoria (Canada). The first phase of this resource began in July 2011 and was completed in September 2013. Further funding was obtained in 2014 to improve and augment this resource (this version) and to develop its sister site Dynamic Dialects. The website contains two main resources: An introduction to UTI, MRI vocal tract imaging techniques and information about the production of the articulatory animations. Clickable International Phonetic Association charts links to UTI, MRI and animated speech articulator video. This online resource is a product of the collaboration between researchers at six Scottish Universities: The University of Glasgow, Queen Margaret University, Napier University, the University of Strathclyde, the University of Edinburgh and the University of Aberdeen; as well as scholars from University College London and Cardiff University. For examples of various dialects of English, please go to the sister site http://www.dynamicdialects.ac.uk
Liquids
(Routledge, 2010-10) Lawson, Eleanor; Stuart-Smith, Jane; Scobbie, James M.; Yaeger-Dror, Malcah; Maclagan, Margaret; Di Paolo, Marianna; Yaeger-Dror, Malcah

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