Abstract
<h2>Summary</h2> The simple reaction time paradigm was used to investigate effects of peripheral (respiratory/laryngeal coupling) and central (task complexity) requirements on average acoustic laryngeal reaction time (LRT) values in normal speakers. Respiratory/laryngeal coupling at response onset varied from glottal stop to aspirate. Complexity varied from isolated vowel to short sentence. The range from shortest to longest average LRT value across all tasks was 69 ms. Significant differences among tasks indicate that acoustic LRT values are sensitive to relatively small magnitude effects associated with respiratory/laryngeal coupling and task complexity. Results led to formulation of two hypotheses, which, while consistent with present findings, require further investigation: First, LRT increases directly with increasing glottal resistance. Second, LRT increases directly with increases in the number of stressed syllables in the response.
Published Version
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