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.