| Abstract | In an experiment, no significant group differences (N = 8 each) in laryngeal reaction time (LRT) & voice onset time (VOT) values were found. Rank-order correlations between stutterers' LRT & VOT values were also nonsignificant. A model of the LRT paradigm is presented that (1) allows
for systematic assessment of factors possibly contributing to the failure to replicate the often reported LRT group difference, & (2) is useful in examining the relationship between the LRT experimental condition & normal speaking conditions. It is argued that 2 factors were particularly critical to the results. First, simple reaction time procedures included (A) a warning signal that preceded a response signal by a variable 1-3-second foreperiod, & (B) a single response. It is claimed that foreperiod durations exceeded the stutterers' speech posture time for a known response. Second, the stuttering severity rating of the experimental group was less severe than ratings in other experiments. |
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