Temporal coordination of phonation and articulation in a case of verbal apraxia: A voice onset time study |
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| Authors: | Frances J. Freeman Elaine S. Sands Katherine S. Harris |
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| Affiliation: | 1. Adelphi University, City University of New York USA;2. Haskins Laboratories, City University of New York USA;3. Graduate School, City University of New York USA |
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| Abstract: | A study of voice onset time (VOT) in stop production was undertaken in order to investigate the hypothesis that the voicing feature errors in the speech of an apraxic patient (Sands, E. S., Freeman, F. J., & Harris, K. S. 1978. Brain and Language, 6, 97–105) were related to deficits in temporal coordination of phonation and articulation. Results demonstrated that the VOTs of the apraxic subject differed markedly from those of normal subjects. The apraxic productions did not include voicing lead for voiced stops. Lag times for voiced stops were longer than normal, while those for voiceless stops were shorter than normal, yielding a compression of the two categories and a marked overlap. |
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| Keywords: | Address correspondence to Elaine Sands Department of Speech Pathology Adelphi University Garden City NY 11530. |
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