The Contribution of Phonetics to the Study of Vowel Development and Disorders

Howard, Sara; Heselwood, Barry

doi:10.4324/9780203103890.ch3

Cited by 12 publications

(18 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Regardless of the precise amount of contact, the results of this study and previous reports (Gibbon et al, 2005;Howard and Heselwood, 2002;McLeod and Singh, 2009) show that the main characteristic of EPG patterns during high vowels in normal speech is contact located in the posterior, lateral regions of the palate, combined with a central posterior groove configuration of electrodes that are free of contact. These typical data will be useful when identifying EPG error patterns in cleft palate speech and also when devising appropriate target patterns when using EPG in visual feedback therapy.…”

Section: Discussionsupporting

confidence: 53%

“…Unlike the speakers with cleft palate, none of the typical speakers produced any vowels with complete tongue palate contact. A feature of all typical EPG patterns for high vowels reported by Gibbon et al (2005), McLeod and Singh (2009) and Howard and Heselwood (2002) was lateral bracing and the presence of a central groove.…”

Section: Introductionmentioning

confidence: 70%

“…EPG records the tongue's contact against the hard palate and has been used extensively to describe articulation errors mostly affecting consonants that occur in cleft palate speech (see Gibbon, 2004, for a review). The position of the tongue in the mouth plays a central role in vowel production, and EPG detects measurable amounts during high front vowels, such as /i/ (as in seat) and high back vowels, such as /u/ (as in boot) (Hardcastle and Gibbon, 1997;Howard and Heselwood, 2002;McLeod and Singh, 2009). Although EPG does not measure tongue position directly, nevertheless the data provide an indication of its height in the oral region of the vocal tract.…”

Section: Introductionmentioning

confidence: 99%

“…The authors acknowledge that the patterns from this speaker may not be representative of the normal population because the patterns showed "more than anticipated tongue palate contact … due to the coarticulatory influence of the /t/" (McLeod and Singh, 2009). Howard and Heselwood (2002) present an example of each of the vowels /i/, /u/ and /ai/ in the words bee, boo and buy. The EPG patterns for /i/ showed contact along the full extent of lateral margins of the palate, and for /u/ the contact was limited to the posterior lateral margins of the palate.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Tongue-Palate Contact during Selected Vowels in Normal Speech

Gibbon

Lee

Yuen

2010

The Cleft Palate-Craniofacial Journal

View full text Add to dashboard Cite

Access to the full text of the published version may require a subscription. RightsGibbon, F. E., Lee, A. Objective: Previous research using electropalatography (EPG) has revealed that high vowels are vulnerable to articulation errors in cleft palate speech. The error involves complete tongue palate contact, which obstructs normal airflow through the mouth and increases nasal airflow. This study used EPG to provide a more detailed description of typical tongue palate contact for high vowels than currently exists. Design: EPG and acoustic data were recorded for multiple repetitions of monophthongs /i/, /u/, /a/ and diphthongs, /ai/, /oi/, /au/. Participants: Ten typical English-speaking adults. Measures: Two measures were taken from EPG data during vowels; one identified EPG patterns with complete tongue palate contact and a second calculated percentage contact at 5 time points. Results: None of the vowels had EPG patterns with complete tongue palate contact. The amount of contact varied for the different vowels, at the 5 time points throughout the vowels and also between speakers. When contact occurred, it was located in the posterior, lateral regions of the palate forming a central groove that was free of contact. Conclusion: Complete tongue palate contact during vowels is not a feature of typical English speech and can be considered an error pattern. The normative date provided in this study will be useful to speech-language pathologists who use EPG in their clinical work. The implications of the findings are discussed in relation to the assessment of vowels in cleft palate speech.

show abstract

Section: Discussionsupporting

confidence: 53%

Section: Introductionmentioning

confidence: 70%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Tongue-Palate Contact during Selected Vowels in Normal Speech

Gibbon

Lee

Yuen

2010

The Cleft Palate-Craniofacial Journal

View full text Add to dashboard Cite

show abstract

“…Several authors agree that vowel transcription is more difficult than consonant transcription (Ball, 1991(Ball, , 1993Butcher, 1989;Howard & Heselwood, 2002b) but according to Donegan (2002, p. 3) it ''is an irreplaceable tool in the analysis of vowel substitutions and vowel development''. The phonetic transcription of vowel sounds is based on the International Phonetic Alphabet (IPA) cardinal vowels: a system of auditory and articulatory standard reference points whose symbols embody information about the fundamental vowel parameters of height, fronting and rounding.…”

Section: Vowel Transcriptionmentioning

confidence: 99%

Vowel transcription systems: An Australian perspective

Cox

2008

International Journal of Speech-Language Pathology

View full text Add to dashboard Cite

Transcription is an essential clinical tool for speech-language pathologists as it provides a permanent written record of communicative behaviour and forms an important source of data for analysis, interpretation, decision making, and dissemination. One of the responsibilities in speech-language pathology is to faithfully capture the speech production characteristics of clinical populations so that informed management decisions may be made. Notation systems that are appropriately suited for this purpose are mandatory. In Australia today, the conventional phonemic transcription system was first described over 60 years ago. However, an alternative to this traditional system has more recently been proposed by Harrington, Cox and Evans (HCE). This paper details the HCE system and argues its advantage as a clinical tool for speechlanguage pathologists in Australia. This new system provides a more accurate phonetically oriented foundation against which atypical vowel production can be assessed. It is further argued that the HCE system can form the basis for narrower phonetic examination and has pedagogical value in the description of Standard Australian English.

show abstract

Clinical Phonetics

Moreland¹

2021

The Cambridge Handbook of Phonetics

View full text Add to dashboard Cite

The Contribution of Phonetics to the Study of Vowel Development and Disorders

Cited by 12 publications

References 1 publication

Tongue-Palate Contact during Selected Vowels in Normal Speech

Tongue-Palate Contact during Selected Vowels in Normal Speech

Vowel transcription systems: An Australian perspective

Clinical Phonetics

Contact Info

Product

Resources

About