Limited acquisition and generalisation of rhotics with ultrasound visual feedback in childhood apraxia

Preston, Jonathan L.; Maas, Edwin; Whittle, Jessica; Leece, Megan C.; McCabe, Patricia

doi:10.3109/02699206.2015.1052563

Cited by 35 publications

(38 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The challenge in CAS treatment with a motor speech focus is that the clinician's success in evoking and shaping increasingly correct, precise, and stable speech and prosody (i.e., shaping) is dependent on the integrity of processes that both precede (representational and feedforward) and follow (auditory and somatosensory feedback) the person's speech productions. The claim here, again, is that the present findings indicate that although motor speech goals are necessary in CAS treatment, some research supports the perspective that motor speech goals likely are not sufficient (Preston, Maas, Whittle, Leece, & McCabe, 2016;Rvachew & BrosseauLapré, 2012).…”

Section: Treatment Goalssupporting

confidence: 68%

A Diagnostic Marker to Discriminate Childhood Apraxia of Speech From Speech Delay: IV. The Pause Marker Index

Shriberg

Strand

Fourakis

et al. 2017

J Speech Lang Hear Res

View full text Add to dashboard Cite

Purpose: Three previous articles provided rationale, methods, and several forms of validity support for a diagnostic marker of childhood apraxia of speech (CAS), termed the pause marker (PM). Goals of the present article were to assess the validity and stability of the PM Index (PMI) to scale CAS severity. Method: PM scores and speech, prosody, and voice precision-stability data were obtained for participants with CAS in idiopathic, neurogenetic, and complex neurodevelopmental disorders; adult-onset apraxia of speech consequent to stroke and primary progressive apraxia; and idiopathic speech delay. Three studies were completed including criterion and concurrent validity studies of the PMI and a temporal stability study of the PMI using retrospective case studies. Results: PM scores were significantly correlated with other signs of CAS precision and stability. The best fit of the distribution of PM scores to index CAS severity was obtained by dividing scores into 4 ordinal severity classifications: mild, mild-moderate, moderate-severe, and severe. Severity findings for the 4 classifications and retrospective longitudinal findings from 8 participants with CAS supported the validity and stability of the PMI. Conclusion: Findings support research and clinical use of the PMI to scale the severity of CAS.A four-article series (Shriberg et al., 2017a(Shriberg et al., , 2017b(Shriberg et al., , 2017c, and the present article) to develop and assess the theoretical and clinical utility of a singlesign, behavioral marker of childhood apraxia of speech (CAS) poses the following three questions: 1.Do findings from construct and criterion validity studies support the diagnostic accuracy of a behavioral marker, the pause marker (PM), to discriminate CAS from speech delay (SD)?2. Do findings from the PM and other measures support the hypothesis of core representational and transcoding deficits in CAS, and is the PM theoretically coherent with those deficits?3. Do findings from cross-sectional and retrospective longitudinal case studies support an ordinal scale of PM scores, the Pause Marker Index (PMI), to quantify the severity of CAS for research and clinical applications?The short-term goal of the PM is to provide a behavioral marker of CAS for research and clinical practice. A longer term goal of the PM is to provide quantitative inclusionary and exclusionary criteria to identify participants who are true positive for CAS in studies to identify and validate a biomarker of CAS. The present article addresses both goals. As proposed in the first article in this series (PM I; Shriberg et al., 2017a, Table 1), a highly valued attribute of diagnostic markers is generality, that is, a marker has research and clinical utility beyond identifying presence or absence of a disorder. In the present context, a behavioral marker of CAS has research and clinical generality when in addition to being diagnostically sensitive to and specific for a prior, active, and/or future disorder, it also quantifies the severity of the disorder. The three...

show abstract

Section: Treatment Goalssupporting

confidence: 68%

A Diagnostic Marker to Discriminate Childhood Apraxia of Speech From Speech Delay: IV. The Pause Marker Index

Shriberg

Strand

Fourakis

et al. 2017

J Speech Lang Hear Res

View full text Add to dashboard Cite

show abstract

“…Most clinical studies to date, particularly with children as participants, have used hand-held ultrasound without recording external reference points (e.g. Bacsfalvi & Bernhardt, 2011;Bressmann et al, 2011;Klein et al, 2013;Preston et al, 2016). While results of clinical studies with head-to-transducer stabilisation have been reported (e.g.…”

Section: Discussionmentioning

confidence: 98%

Using ultrasound tongue imaging to identify covert contrasts in children’s speech

Zharkova

Gibbon

Lee

2016

Clinical Linguistics & Phonetics

View full text Add to dashboard Cite

Ultrasound tongue imaging has become a promising technique for detecting covert contrasts, due to the developments in data analysis methods that allow for processing information on tongue shape from young children. An important feature concerning analyses of ultrasound data from children who are likely to produce covert contrasts is that the data are likely to be collected without head-to-transducer stabilisation, due to the speakers' age. This article is a review of the existing methods applicable in analysing data from non-stabilised recordings. The article describes some of the challenges of ultrasound data collection from children, and analysing these data, as well as possible ways to address those challenges. Additionally, there are examples from typical and disordered productions featuring covert contrasts, with illustrations of quantifying differences in tongue shape between target speech sounds.

show abstract

“…Ultrasound imaging can be particularly useful for evaluating 26,27 and remediating 2,10,11,12,13,20 speech sound errors that involve the oral and pharyngeal constrictions associated with /r/. Sagittal views can identify if the participant is lacking an anterior constriction or tongue root retraction.…”

Section: Significance Of the Technique With Respect To Existing/altermentioning

confidence: 99%

“…Coronal views provide the ability to examine whether there is midline grooving and elevation of the lateral margins of the tongue during /r/ production. Once the elements in error have been properly identified, this information can be used to systematically train new tongue movements, ideally while viewing real-time feedback of the tongue 2,10,11,12,13,20 . Methods such as electropalatography or electromagnetic articulography do not allow sufficient visualization of all aspects of the tongue, such as the tongue root, whereas ultrasound can overcome this limitation.…”

Section: Significance Of the Technique With Respect To Existing/altermentioning

confidence: 99%

“…In the specific context of clinical research on the assessment and treatment of /r/ errors, the use of ultrasound has been reported in several studies for individuals with idiopathic speech sound disorders 2,10,11,13,19 , hearing impairment 20 , childhood apraxia of speech 12,21 , and acquired apraxia of speech following a cerebral vascular accident 22 . 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 .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

Preston

Byun

Boyce

et al. 2017

JoVE

Self Cite

View full text Add to dashboard Cite

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.

show abstract

Limited acquisition and generalisation of rhotics with ultrasound visual feedback in childhood apraxia

Cited by 35 publications

References 52 publications

A Diagnostic Marker to Discriminate Childhood Apraxia of Speech From Speech Delay: IV. The Pause Marker Index

A Diagnostic Marker to Discriminate Childhood Apraxia of Speech From Speech Delay: IV. The Pause Marker Index

Using ultrasound tongue imaging to identify covert contrasts in children’s speech

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

Contact Info

Product

Resources

About