Title: Vocal jitter at different fundamental frequencies: A cardiovascular-neuromuscular explanation
Abstract: As a widely used descriptor of phonatory behavior, vocal fundamental frequency perturbation (jitter) has received much attention in the recent voice literature. Despite this, the exact causes of this cycle-to-cycle frequency variability are only poorly understood. Associated with attempts to characterize this vocal parameter and to standardize its measurement, many investigators have alluded to a relationship between jitter magnitude and the fundamental frequency of phonation without mention of the underlying physiology. This article reviews two jitter-inducing mechanisms (one based on normal cardiovascular function and the other on normal neuromuscular function) and describes how they help to explain the observed nonlinear dependence of short-term frequency variability on the frequency of phonation in the normal voice.
Publication Year: 1989
Publication Date: 1989-06-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 9
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