Normal adult speakers' tongue palate contact patterns for alveolar oral and nasal stops



Gibbon, Fiona and Yuen, Ivan and Lee, Alice and Adams, Lynne (2007) Normal adult speakers' tongue palate contact patterns for alveolar oral and nasal stops. Advances in Speech Language Pathology, Volume 9 (Number 1). pp. 82-89. ISSN 1441-7049

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Abstract

This study compared tongue palate contact patterns for oral stops (/t/, /d/) with those for the nasal stop /n/ in order to provide normative data for diagnosing and treating individuals with speech disorders. Electropalatographic (EPG) data were recorded from 15 English speaking adults for word initial /t/, /d/ and /n/ in a high and a low vowel context. EPG frames were classified according to three criteria: (1) anterior constriction; (2) bilateral constriction; and (3) zero posterior central contact. Total amount of contact and variability were also measured. The results showed that almost all (99%) stops met Criteria 1 and 3, with fewer articulations (88% of /t/; 83% of /d/ and 55% of /n/) meeting Criterion 2. Although all stops had similar spatial patterns, /t/ and /d/ had more contact and were more likely to have bilateral constriction than /n/. There were no differences in variability between /t/, /d/ and /n/, however. The clinical implications of the results for the management of individuals with speech disorders are discussed.

Item Type: Article
Uncontrolled Keywords: Stops; electropalatography (EPG); articulation disorder
Divisions: School of Health Sciences > Clinical Audiology, Speech and Language Research Centre
Date Deposited: 10 Jan 2008 14:07
Last Modified: 07 Jul 2011 10:11
URI: http://eresearch.qmu.ac.uk/id/eprint/40

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