11. Ultrasound imaging applications in second language acquisition

Gick, Bryan; Bernhardt, Barbara May; Bacsfalvi, Penelope; Wilson, Irwin B.

doi:10.1075/sibil.36.15gic

Cited by 64 publications

(37 citation statements)

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“…In the last two decades, researchers have shown a growing interest in ultrasound techniques. Ultrasound imaging has been used in many fields of linguistics and phonetics such as the interface between phonetics and phonology [1][2][3][4][5][6][7][8][9] , second language learning [10,11] , clinical phonetics [12][13][14][15] , speech development [16,17] and articulatory modeling [18] , among others. One of the advantages of this technique is that it provides a view of the global tongue con-tour in the midsagittal or coronal plane, whereas flesh-point tracking methods such as electromagnetic midsagittal articulography [19] or X-ray microbeam [20] provide coordinates of receivers attached to the tongue.…”

Section: Introductionmentioning

confidence: 99%

Measuring Tongue Shapes and Positions with Ultrasound Imaging: A Validation Experiment Using an Articulatory Model

Ménard

Aubin

Thibeault

et al. 2011

Folia Phoniatr Logop

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Objective: The goal of this paper is to assess the validity of various metrics developed to characterize tongue shapes and positions collected through ultrasound imaging in experimental setups where the probe is not constrained relative to the subject’s head. Patients and Methods: Midsagittal contours were generated using an articulatory-acoustic model of the vocal tract. Sections of the tongue were extracted to simulate ultrasound imaging. Various transformations were applied to the tongue contours in order to simulate ultrasound probe displacements: vertical displacement, horizontal displacement, and rotation. The proposed data analysis method reshapes tongue contours into triangles and then extracts measures of angles, x and y coordinates of the highest point of the tongue, curvature degree, and curvature position. Results: Parameters related to the absolute tongue position (tongue height and front/back position) are more sensitive to horizontal and vertical displacements of the probe, whereas parameters related to tongue curvature are less sensitive to such displacements. Conclusion: Because of their robustness to probe displacements, parameters related to tongue shape (especially curvature) are particularly well suited to cases where the transducer is not constrained relative to the head (studies with clinical populations or children).

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Section: Introductionmentioning

confidence: 99%

Measuring Tongue Shapes and Positions with Ultrasound Imaging: A Validation Experiment Using an Articulatory Model

Ménard

Aubin

Thibeault

et al. 2011

Folia Phoniatr Logop

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“…Studies have also reported the use of ultrasound to treat errors on other lingual phonemes such as /s k g l ʃ ʧ / 23,24 . Additional populations that may be candidates include individuals with speech disorders related to cleft palate, or individuals learning pronunciation of sounds in a non-native language 25 .…”

Section: Introductionmentioning

confidence: 99%

Ultrasound Images of the Tongue: A Tutorial for Assessment and Remediation of Speech Sound Errors

Preston

Byun

Boyce

et al. 2017

JoVE

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Diagnostic ultrasound imaging has been a common tool in medical practice for several decades. It provides a safe and effective method for imaging structures internal to the body. There has been a recent increase in the use of ultrasound technology to visualize the shape and movements of the tongue during speech, both in typical speakers and in clinical populations. Ultrasound imaging of speech has greatly expanded our understanding of how sounds articulated with the tongue (lingual sounds) are produced. Such information can be particularly valuable for speech-language pathologists. Among other advantages, ultrasound images can be used during speech therapy to provide (1) illustrative models of typical (i.e. "correct") tongue configurations for speech sounds, and (2) a source of insight into the articulatory nature of deviant productions. The images can also be used as an additional source of feedback for clinical populations learning to distinguish their better productions from their incorrect productions, en route to establishing more effective articulatory habits.Ultrasound feedback is increasingly used by scientists and clinicians as both the expertise of the users increases and as the expense of the equipment declines. In this tutorial, procedures are presented for collecting ultrasound images of the tongue in a clinical context. We illustrate these procedures in an extended example featuring one common error sound, American English /r/. Images of correct and distorted /r/ are used to demonstrate (1) how to interpret ultrasound images, (2) how to assess tongue shape during production of speech sounds, (3), how to categorize tongue shape errors, and (4), how to provide visual feedback to elicit a more appropriate and functional tongue shape. We present a sample protocol for using real-time ultrasound images of the tongue for visual feedback to remediate speech sound errors. Additionally, example data are shown to illustrate outcomes with the procedure.

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“…The essential issue is that the learners lack appropriate knowledge on how to modify their articulation to produce correct L2 sounds. 1,2 In this situation, acquiring appropriate patterns of articulation for correct L2 production may also be affected by their native language (L1), that is, L1 interference. 3,4 Training with real-time visual feedback of articulatory position using ultrasound imaging 2,5 or electromagnetic articulometry (EMA) 6,7 has been proposed to address this issue.…”

Section: Introductionmentioning

confidence: 99%

“…1,2 In this situation, acquiring appropriate patterns of articulation for correct L2 production may also be affected by their native language (L1), that is, L1 interference. 3,4 Training with real-time visual feedback of articulatory position using ultrasound imaging 2,5 or electromagnetic articulometry (EMA) 6,7 has been proposed to address this issue. These approaches have improved the production of English approximants 2 and of French vowels 5 by native Japanese speakers and Japanese flap 6 by native American English (AE) speakers.…”

Section: Introductionmentioning

confidence: 99%

“…3,4 Training with real-time visual feedback of articulatory position using ultrasound imaging 2,5 or electromagnetic articulometry (EMA) 6,7 has been proposed to address this issue. These approaches have improved the production of English approximants 2 and of French vowels 5 by native Japanese speakers and Japanese flap 6 by native American English (AE) speakers. However, because the previous studies had employed audio stimuli and/or provided knowledge of phonation during training, it is unclear whether or not the visual presentation of articulatory information itself actually plays a main role in facilitating L2 pronunciation learning.…”

Section: Introductionmentioning

confidence: 99%

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A real-time articulatory visual feedback approach with target presentation for second language pronunciation learning

Suemitsu¹,

Dang²,

Itō³

et al. 2015

The Journal of the Acoustical Society of America

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International audienceArticulatory information can support learning or remediating pronunciation of a second language (L2). This paper describes an electromagnetic articulometer-based visual-feedback approach using an articulatory target presented in real-time to facilitate L2 pronunciation learning. This approach trains learners to adjust articulatory positions to match targets for a L2 vowel estimated from productions of vowels that overlap in both L1 and L2. Training of Japanese learners for the American English vowel /ae/ that included visual training improved its pronunciation regardless of whether audio training was also included. Articulatory visual feedback is shown to be an effective method for facilitating L2 pronunciation learning

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11. Ultrasound imaging applications in second language acquisition

Cited by 64 publications

References 0 publications

Measuring Tongue Shapes and Positions with Ultrasound Imaging: A Validation Experiment Using an Articulatory Model

Measuring Tongue Shapes and Positions with Ultrasound Imaging: A Validation Experiment Using an Articulatory Model

Ultrasound Images of the Tongue: A Tutorial for Assessment and Remediation of Speech Sound Errors

A real-time articulatory visual feedback approach with target presentation for second language pronunciation learning

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