18 Apr 2006

Corey McMillan (Psychology)

Researchers often analyse phonological speech errors to provide constraints on models of speech production. While the majority of this work has been based on perceptual transcription of phonological errors there is a growing interest in instrumental analyses of articulation during the production of errors. In this talk I will present a review of instrumental speech error analyses in addition to recent electropalatography (EPG) data collected using a tongue-twister and word-order competition experimental paradigm. For the latter, I will provide a qualitative analysis and consider how articulatory errors should be interpreted. For example, double articulations may be interpreted as evidence of residual activation in speech planning or a rapid articulatory repair. I will also present a quantitative analysis method for EPG measuring tongue-contact variation and consider if variations in contact can reflect higher-level lexical influences on lower-level articulatory implementation. Ultimately, I hope to provide evidence that investigating speech errors at the articulatory level is an important approach to develop comprehensive models of speech production.

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