What question did this study set out to answer?

This research investigates the relationship between spectral aggregate of fundamental frequency and laryngeal postures in adductor laryngeal dystonia.

April 17, 2026

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Physiological Correlates of the Spectral Aggregate of the High-Passed Fundamental Frequency in Adductor Laryngeal Dystonia

Key Points

This research investigates the relationship between spectral aggregate of fundamental frequency and laryngeal postures in adductor laryngeal dystonia.
Analyzed acoustic features related to laryngeal postures.
Identified discontinuities in acoustic data specific to adductor laryngeal dystonia.
Examined physiological correlates of these acoustic features.
Spectral aggregate of fundamental frequency correlates with specific laryngeal postures.
Acoustic discontinuities associated with adductor laryngeal dystonia were evidenced.
Preliminary support found for using spectral aggregate in clinical assessments.

Abstract

Findings suggest that SAHfo is related to the laryngeal postures associated with AdLD-specific acoustic discontinuities, providing preliminary physiological support of the use of SAHfo in speakers with AdLD.

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Cite This Study

Toles et al. (Wed,) studied this question.

synapsesocial.com/papers/69e1ce065cdc762e9d85739e https://doi.org/https://doi.org/10.1044/2026_jslhr-25-00836

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