| Number | 423 |
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| Year | 1983 |
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| Drawer | 7 |
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| Entry Date | 11/19/1999 |
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| Authors | Watson, B. C., & Alfonso, P. J. |
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| Publication | Journal of Fluency Disorders, 8, 183-206. |
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| Abstract | Examined the effects of foreperiod and stuttering severity within the authors' (1982) model of the laryngeal RT (LRT) paradigm. 10 Subjects (aged 21-48 yrs) with mild or severe stuttering and 5 normal controls (aged 23-49 yrs) responded to reaction signals in which the foreperiod varied from
100 to 3,000 msec. Both foreperiod and stuttering severity significantly affected LRT values. These factors demonstrated a composite effect on group LRT differences. Specifically, mild stutterers' LRT values approached normal values as foreperiod increased, whereas severe stutterers' LRT values remained significantly greater than normal values at all foreperiods. Results are discussed in terms of differential posturing and/or vibration initiation deficits underlying stutterers' delayed LRT values. It is cautioned that acoustic measurements alone are insufficient to specify fully the nature of the underlying deficits. |
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| Notes | |
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