A cod pod thawed out: effects of superimposed prosodic structure on speech errors in alternating CVC sequences observed kinematically

Argyro Katsika, Mark Tiede, Christine Mooshammer, Louis Goldstein, Stefanie Shattuck-Hufnagel


Electromagnetic articulometry (EMA) has been used to record the production of alternating CVC sequences in differing prosodic contexts. These ranged over simple alternation, superimposed phrasal boundaries, imitation of sentential stress, and within-sentence embedding. EMA movement data were obtained at 200 Hz from sensors placed on the tongue, lips and mandible, corrected for head movement and aligned to the occlusal plane. Synchronized audio was recorded at 16 kHz. Pouplier (2008) has shown that alternating CVCs result in (possibly incomplete) inappropriate constrictions of the anti-phase articulator ("intrusions"; e.g., tongue dorsum constriction coincident with the target bilabial closure in "pod" of a "pod cod" sequence), as well as unachieved constrictions of the in-phase target articulator ("reductions"). "Substitutions" represent a combination of complete intrusion and complete reduction. The hypothesis tested in this work is that as sequences become more sentence-like, the rate of substitution errors as a percentage of all observed errors will increase. To test this we examine the phase and amplitude deviations of EMA trajectories from individual trials measured from their cross-trial aggregate, aligned using nonlinear time-warping.


Cite as

Katsika, A., Tiede, M., Mooshammer, C., Goldstein, L., Shattuck-Hufnagel, S. (2016) A cod pod thawed out: effects of superimposed prosodic structure on speech errors in alternating CVC sequences observed kinematically. Proc. Speech Prosody 2016, (abstract).

Bibtex
@inproceedings{Katsika+2016,
author={Argyro Katsika and Mark Tiede and Christine Mooshammer and Louis Goldstein and Stefanie Shattuck-Hufnagel},
title={A cod pod thawed out: effects of superimposed prosodic structure on speech errors in alternating CVC sequences observed kinematically},
year=2016,
booktitle={Speech Prosody 2016}
}