Temporal coordination of phonation and articulation in a case of verbal apraxia: A voice onset time study.

Number 242
Year 1978
Drawer 4
Entry Date 06/03/1999
Authors Freeman, F. J., Sands, E. S., & Harris, K. S.
Contact
Publication Brain and Language, 6, 106-111.
url http://www.haskins.yale.edu/Reprints/HL0242.pdf
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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