A qualitative dynamic analysis of reiterant speech production: Phase portraits, kinematics, and dynamic modeling.
| Number | 488 |
|---|---|
| Year | 1985 |
| Drawer | 8 |
| Entry Date | 11/19/1999 |
| Authors | Kelso, J. A. S., Vatikiotis-Bateson, E., Saltzman, E. L., & Kay, B. |
| Contact | |
| Publication | Journal of the Acoustical Society of America, 77, 266-280. |
| url | http://www.haskins.yale.edu/Reprints/HL0488.pdf |
| Abstract | In an effort to understand & characterize the spatiotemporal structure of articulatory patterns in speech, segmental variation was removed as much as possible while retaining stress & prosodic structure. Two adult Subjects produced 2 sentences from the "Rainbow Passage" using reiterant speech in which normal syllables were replaced by /ba/ or /ma/. The task was performed at self-selected conversational & fast rates. Infra-red LEDs were placed on the jaw & lips & monitored. When pauses marking major syntactic boundaries were removed, a high degree of rhythmicity within rates was observed. When articulatory gestures were examined geometrically on the phase plane, the trajectories revealed a scaling relation between a gesture's peak velocity & displacement. Preliminary modeling was consonant with a dynamical perspective which does not require that time per se be a controlled variable. |
| Notes |
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