Serial control of phonology in speech production: a hierarchical model.
A dynamic oscillator-based model of the sequencing of phonemes in speech production (OSCAR) is described. An analysis of phoneme movement errors (anticipations, perseverations, and exchanges) from a large naturalistic speech error corpus provides a new set of data suitable for quantitative modeling and is used to derive a set of constraints that any speech-production model must address. The new computational model is shown to account for error type proportions, movement error distance gradients, the syllable-position effect, and phonological similarity effects. The model provides an alternative to frame-based accounts, serial buffer accounts, and associative chaining theories of serial order processing in speech.
Vousden
J I
JI
University of Warwick, Coventry, United Kingdom. J.I.Vousden@warwick.ac.uk
Brown
G D
GD
Harley
T A
TA
D006801:Humans; D007804:Language Development; D008960:Models, Psychological; D010700:Phonetics; D013060:Speech