Effects of vowel context on the articulatory closure postures of deaf speakers.
Using cinefluorography, this investigation evaluated how the bilabial and dorsal stop closure postures of 2 hearing and 5 deaf speakers varied with vowel context. The jaw and tongue body postures of the hearing and the 2 most intelligible deaf speakers altered with the identity of the following vowel. This did not occur consistently for the remaining deaf speakers. The results concur with a previous suggestion (Tye, Zimmerman, & Kelso, 1983) that some speakers who learn speech without audition may develop a different articulatory coordination than hearing speakers. Discovering these differences may lead to a general account for many of their intelligibility deficits.
D001184:Articulation Disorders / Q000503:physiopathology*; D002933:Cineradiography; D003638:Deafness / Q000503:physiopathology*; D005260:Female; D006801:Humans; D007568:Jaw / Q000502:physiology; D008046:Lip / Q000502:physiology*; D008297:Male; D014061:Tongue Habits