Teaching Consonants to Profoundly Hearing-Impaired Speakers Using Palatometry

Fletcher, Samuel G.; Dagenais, Paul A.; Critz-Crosby, Paula

doi:10.1044/jshr.3404.929

Cited by 43 publications

(41 citation statements)

References 9 publications

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“…EPG has been used successfully to treat disorders ranging from dyspraxia (Hardcastle & Edwards 1992), dysarthria (Wood & Hardcastle 1999), cleft palate (Gibbon et al 2001;Whitehill, Stokes & Man, 1996), glossectomy (Fletcher 1988) and dysfluency (Wood 1993; to speech problems related to deafness (Fletcher & Hasegawa 1983;Dagenais & CritzCrosby 1991;Fletcher, Dagenais, & Critz-Crozby 1991a;Dagenais, Critz-Crozby, Fletcher & McCutcheon 1994;Crawford 1995;Parsloe 1998). However, no research to date has been based on children who have cochlear implants.…”

Section: Introductionmentioning

confidence: 99%

Efficacy of speech intervention using electropalatography with a cochlear implant user

Pantelemidou¹,

Herman²,

Thomas³

2003

Clinical Linguistics & Phonetics

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This is the unspecified version of the paper.This version of the publication may differ from the final published version. (Crawford 1995;Parsloe 1998), however there are no similar studies for cochlear implant users. The purpose of this single case study is to explore the technique of EPG as a therapeutic intervention to treat voiceless velar stop consonant sound production in a deaf child cochlear implant user. EPG therapy was offered as a last resort when traditional therapy failed to achieve specific changes. Permanent repository linkDuring therapy, a list of familiar words was practised, using the visual feedback provided by EPG. The client's articulation was assessed using objective (EPG printouts) and subjective (listener ratings) measures at four assessment points. Changes were found to be statistically significant. Generalisation of the newly-acquired skills to untaught words containing voiceless velars was also observed. The results are discussed in the broader context of implications of this type of therapy with deaf clients.

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Section: Introductionmentioning

confidence: 99%

Efficacy of speech intervention using electropalatography with a cochlear implant user

Pantelemidou¹,

Herman²,

Thomas³

2003

Clinical Linguistics & Phonetics

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“…This is surprising, as EPG provides clear visual feedback of place of articulation for a range of sounds (Fletcher et al, 1991;Gibbon et al, 1993), which can be particularly problematic for deaf speakers. For certain consonants, a contrast in place of articulation is difficult to discriminate auditorily and difficult to perceive visually, e.g., alveolar versus velar consonants.…”

Section: Introductionmentioning

confidence: 95%

“…Many studies report improvement in clients' productions of specific phonemes where traditional therapy has failed to affect change or where skills have plateaued (Bernhardt et al, 2003;Dagenais, Critz-Crosby, Fletcher, & McCutchen, 1994;Pantelemidou et al, 2003;Parsloe, 1998). There is evidence in the literature that EPG therapy can affect change in speech production skills more quickly than traditional therapy (Bernhardt et al, 2003;Dagenais et al, 1994;Fletcher et al, 1991;Parsloe, 1998). There is also some evidence that production skills can be maintained in the short-term (Crawford, 1995;Dagenais et al, 1994;Pantelemidou et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

“…Relatively few studies have investigated the use of EPG with adults with speech production difficulties (Bernhardt, Bacsfalvi, & Gick, 2005;Howard & Varley, 1995). In terms of its specific use, EPG has been successfully used to teach production patterns for a range of sounds, including fricatives (Bernhardt, Gick, Bacsfalvi, & Ashdown, 2003;Fletcher, Dagenais, & Critz-Crosby, 1991;Parsloe, 1998), affricates (Bernhardt et al, 2003;Hardcastle et al, 1995;Parsloe, 1998) and plosives (Crawford, 1995;Friel, 1998;Gibbon et al, 1993;Pantelemidou, Herman, & Thomas, 2003;Parsloe, 1998).…”

Section: Introductionmentioning

confidence: 99%

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The efficacy of speech intervention using electropalatography with an 18-year-old deaf client: A single case study

Martin¹,

Hirson

Herman

et al. 2007

Advances in Speech Language Pathology

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This single case study explored the use of EPG as a therapeutic tool for treating inaccurate articulation of the voiceless alveolar plosive /t/. The participant (M) is an 18-year-old deaf adult who consistently uses hearing aids, and who communicates using a combination of English, Sign Supported English and British Sign Language (BSL). M received traditional phonological therapy targeting his production of /t/ prior to EPG therapy, but without success. He requested further therapy and EPG was offered as an alternative approach. Pre-EPG therapy, M made tongue placement errors for both /t/ and the voiced alveolar plosive /d/. Based on perceptual analysis by M's speech and language therapist, the first author, his productions were inconsistent, though generally perceived as voiceless and voiced velar plosives respectively. The EPG therapy consisted of 6 bi-weekly therapy sessions, each lasting for one hour, targeting M's production of /t/ in familiar words, using the visual feedback from the EPG display. Trained and untrained listeners perceptually analysed audio recordings of words and sentences collected at 3 assessment points. Improvements, both over the course of the EPG therapy and during the follow-up period, were found to be statistically significant. Significantly, M was able to generalise his production skills to untaught words containing both /t/ and /d/. Equally significant was the lack of change in M's production of a control sound, the voiceless dental fricative /θ/. More globally, an improvement was observed in ratings of M's intelligibility in sentences and in his voice quality (assessed impressionistically).

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“…2 One arm evaluated the effects of visual-acoustic biofeedback intervention (see McAllister Byun & Hitchcock, 2012;McAllister Byun et al, 2016); another tested ultrasound biofeedback (e.g., McAllister Byun, Hitchcock, & Swartz, 2014;Preston et al, 2013;Preston et al, 2014); and a final arm examined electropalatographic (EPG) biofeedback (e.g., Fletcher, Dagenais, & Critz-Crosby, 1991;Hitchcock et al, in press). Four participants with residual /r/ misarticulation were enrolled in each leg of the study.…”

Section: Treatment Parametersmentioning

confidence: 99%

Masked Visual Analysis: Minimizing Type I Error in Visually Guided Single-Case Design for Communication Disorders

Byun

Hitchcock

Ferron

2017

J Speech Lang Hear Res

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Purpose Single-case experimental designs are widely used to study interventions for communication disorders. Traditionally, single-case experiments follow a response-guided approach, where design decisions during the study are based on participants' observed patterns of behavior. However, this approach has been criticized for its high rate of Type I error. In masked visual analysis (MVA), response-guided decisions are made by a researcher who is blinded to participants' identities and treatment assignments. MVA also makes it possible to conduct a hypothesis test assessing the significance of treatment effects. Method This tutorial describes the principles of MVA, including both how experiments can be set up and how results can be used for hypothesis testing. We then report a case study showing how MVA was deployed in a multiple-baseline across-subjects study investigating treatment for residual errors affecting rhotics. Strengths and weaknesses of MVA are discussed. Conclusions Given their important role in the evidence base that informs clinical decision making, it is critical for single-case experimental studies to be conducted in a way that allows researchers to draw valid inferences. As a method that can increase the rigor of single-case studies while preserving the benefits of a response-guided approach, MVA warrants expanded attention from researchers in communication disorders.

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Teaching Consonants to Profoundly Hearing-Impaired Speakers Using Palatometry

Cited by 43 publications

References 9 publications

Efficacy of speech intervention using electropalatography with a cochlear implant user

Efficacy of speech intervention using electropalatography with a cochlear implant user

The efficacy of speech intervention using electropalatography with an 18-year-old deaf client: A single case study

Masked Visual Analysis: Minimizing Type I Error in Visually Guided Single-Case Design for Communication Disorders

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