Labial Coarticulation in Stutterers and Normal Speakers: a Pilot Study
Anticipatory labial co-articulation refers specifically to the early onset of features related to labiality, as, for example in the onset of rounding for rounded vowels. This particular example of anticipatory labial co-articulation has received considerable attention in recent research in normal speech production (Kent and Minifie, 1977). Some of this research has shown a temporally variable extent of anticipation related to the number of non-labial consonants preceding the rounded vowel (Benguerel and Cowan, 1974; Lubker, McAllister and Linker, 1979; Lubker, 1981). Other researchers have found relatively constant anticipation times (Gay, 1979; Bell-Berti and Harris, 1979, 1982). It has been suggested that inter-language differences may account for some of the differences in the results obtained in these various studies (Lubker and Gay, 1982). This is, of course, an important point since research in speech production is concerned primarily with underlying mechanisms. The need for separation of language specific variables and underlying mechanisms, therefore, is one motivation for part of the work presented in this chapter.
KeywordsMovement Time Speech Production Anticipation Time Speech Motor Normal Speaker
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