Assimilation or coarticulation? Evidence from the temporal co-ordination of tongue gestures for the palatalization of Bulgaran alveolar stops  

Oleh:

Wood, Sidney A.J.

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Journal of Phonetics vol. 24 no. 1 (Jan. 1996), page 139-164.

Ketersediaan

Perpustakaan PKBB Nomor Panggil: 405/JOP/24 Non-tandon: tidak ada Tandon: 1

Lihat Detail Induk

Isi artikel

Three issues are considered in this report-are assimilation and coarticulation the same process or different, are they achieved by feature spreading or by coproduction, and what level or levels of neuromotor planning or production do they represent? Tongue gestures analysed from an X-ray motion film of Bulgarian speech are presented as examples of what the tongue is made to do in speech and of how those gestures are co-ordinated with other articulator gestures, in particular for the palatalization of apico-alveolar stops. The gestures involved in this assimilation are initiated earlier, or are held longer, than in nonassimilated situations. The revision of gesture timing in relation to adjacent activity indicates that assimilation is preplanned and does not reflect coarticulation or the effect of vocal tract biodynamics. Secondly, the gestural programming for this case of palatalization is better described as coproduction than feature spreading. Finally the temporal organization of co articulation reported here also agrees with that reported previously. In particular, potentially conflicting gestures are not blended but are produced sequentially, which favors the. gesture queuing paradigm rather than the tug of-war paradigm and indicates that coarticulation is also preplanned.

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