Articulatory characteristics of the occlusion phase of /t / compared to /t/ in adult speech
Wrench, Alan A.
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Liker, M., Gibbon, F., Wrench, A. & Horga, D. (2007) Articulatory characteristics of the occlusion phase of /t / compared to /t/ in adult speech, Advances in Speech Language Pathology, vol. 9, , pp. 101-108,
This study used electropalatography (EPG) to investigate articulatory characteristics of /t / and /t/ occlusion in order to provide normative data to be used for the diagnosis and treatment of individuals with speech disorders. EPG data from the EUR-ACCOR database were analysed for nonsense VCV sequences containing /t / and /t/ in nine vowel contexts for seven English speaking adults. The main results of this study are that all speakers had a significantly more posterior placement for /t / compared to /t/ and that placement was stable during the occlusion phase of both /t / and /t/. For most speakers, the occlusion phase was longer for /t / compared to /t/, the occlusion phase generally involved more EPG contact and was slightly more variable in /t / compared to /t/, but these differences were not statistically significant for all speakers. The implications of the results for diagnosing and treating speech disorders are discussed.