Vocal Fold Vibratory Kinematics and Acoustic Correlates in Pressed and Breathy Phonation.

PURPOSE: ) and whether the relationships vary by phonation type. METHOD: . Mixed analyses of variance were conducted for phonation type differences in HSV parameters with main effects of phonation type, sex, and their interaction. Then, multiple regression models with phonation type interactions were conducted to assess the relationships between HSV and acoustic measures. RESULTS: and MADRn, SI, and STI; in each, breathy phonation had a strong, negative relationship and pressed phonation had a small or negligible relationship. ClQ consistently correlated with both acoustic measures across all phonation types. CONCLUSIONS: can reflect underlying glottal physiology, but their predictive value depends on phonation type in most cases. However, findings suggest that ClQ could be a robust physiological parameter with stable acoustic correlates regardless of phonation type.