The correlation of P-center adjustments with articulatory and acoustic events |
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Authors: | Kenneth J. De Jong |
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Affiliation: | 1. University of California, Los Angeles, California
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Abstract: | To evaluate articulatory models of perceptual center (P-center) location, listeners performed perceptual adjustments on stimuli which were extracted from a corpus of articulatory data. To avoid streaming effects, the stimuli were not edited to obtain temporal variation; instead, they varied in stress and segmental content. Adjustments were evaluated as to their simultaneity with acoustic and articulatory events. The first experiment yielded various articulatory and acoustic correlates of P-center location; the second yielded different articulatory predictors and no acoustic effective predictors. Multiple correlation analyses showed a variation from P-center locations predicted by the articulatory events that were associated with other predictors. Thus, P-center locations do not correspond to any particular kinematic articulatory event, but rather to a complex of events taken from throughout the stimuli. These results are discussed in terms of their relevance to a model of P-centers as indices of underlying gestural timing. |
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