Interarticulator cohesion within coronal consonant production.
If more than one articulator is involved in the execution of a phonetic task, then the individual articulators have to be temporally coordinated with each other in a lawful manner. The present study aims at analyzing tongue-jaw cohesion in the temporal domain for the German coronal consonants [s, f, t, d, n, l], i.e., consonants produced with the same set of articulators--the tongue blade and the jaw--but differing in manner of articulation. The stability of obtained interaction patterns is evaluated by varying the degree of vocal effort: comfortable and loud. Tongue and jaw movements of five speakers of German were recorded by means of electromagnetic midsagittal articulography (EMMA) during [aCa] sequences. The results indicate that (1) tongue-jaw coordination varies with manner of articulation, i.e., a later onset and offset of the jaw target for the stops compared to the fricatives, the nasal and the lateral; (2) the obtained patterns are stable across vocal effort conditions; (3) the sibilants are produced with smaller standard deviations for latencies and target positions; and (4) adjustments to the lower jaw positions during the surrounding vowels in loud speech occur during the closing and opening movement intervals and not the consonantal target phases.
Mooshammer
Christine
C
Institut für Phonetik und digitale Sprachverarbeitung, Christian-Albrechts Universität, Kiel, 24098 Germany. timo@ipds.uni-kiel.de
Hoole
Philip
P
Geumann
Anja
A
D000328:Adult; D000704:Analysis of Variance; D055590:Electromagnetic Phenomena; D005260:Female; D006801:Humans; D007568:Jaw / Q000502:physiology*; D008297:Male; D015999:Multivariate Analysis; D010699:Phonation / Q000502:physiology*; D010700:Phonetics; D013018:Sound Spectrography; D013068:Speech Production Measurement; D013997:Time Factors; D014059:Tongue / Q000502:physiology*