Jäncke, L., Kaiser, P., Bauer, A. & Kalveram, K.Th. (1995b)
Upper lip, lower lip and jaw peak velocity sequence during bilabial closures:
No differences between stutterers and nonstutterers. Journal of the
Acoustical Society of America, 97, 3900-3903.
Abstract
Examined the effects of systematic changes in stress pattern and speech rate on the sequencing of upper lip, lower lip, and jaw peak velocities during oral closure associated with the repeated production of the testword /papapas/ with stress on either the 1st or the 2nd syllable. The testword /sapapple/, with stress on the 1st syllable, was used to analyze the peak velocity sequence associated with production of the 1st bilabial closure. Ss were 19 adult stutterers, and 12 adult nonstutterers. Temporal organization of intersegmental gestures in bilabial closings was not stable across speech rate and stress manipulations. Also, strong intra- and interindividual variability was observed in peak velocity patterns for both groups in achieving bilabial closures. This suggests that peak velocity sequence is not an appropriate marker of a disturbed speech motor control process.
Back