The effects of lexical stress, lexical type, and voicing context on symptom expression in individuals with adductor laryngeal dystonia
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Abstract
The purpose of this study was to examine the effects of 3 linguistic factors (lexical stress, voicing context, and lexical type) on voice symptoms in individuals with adductor laryngeal dystonia (AdLD). Fifty individuals with AdLD produced stimulus sentences containing a balanced set of words that varied across these factors. AdLD symptoms (frequency shifts, creaky voice, and voicing breaks) were then identified from the audio recordings. Analyses were performed in order to examine how each of those linguistic factors affected symptom expression. Findings indicate that stress and onset voicing had an overall significant effect on symptom expression, and the effects of stress varied by onset voicing and lexical type. These findings contribute to our understanding of the context-specific nature of voice symptoms in speakers with AdLD.
Description
2025