Summary
Objectives
In this study, we sought to investigate whether auditory-perceptual and acoustic measures
change after a passage-reading task and to develop a multidimensional index of performance
fatigue in voice disorders. The clinical usefulness and cut-off scores of the newly
developed index were also explored.
Methods
A total of 150 patients (age = 35.65 ± 11.44 years) with voice disorders and 100 healthy
controls (age = 35.04 ± 11.26 years) were enrolled in the study. Overall severity
(OS) and acoustic measures of sentence samples were obtained before and after a passage-reading
task and compared between the two positions. Acoustic features included cepstral peak
prominence (CPP), σCPP, L/H spectral ratio (SR), and σSR. Using the changes (Δ) in
those acoustic measures and the scores of the Vocal Fatigue Index (VFI), a predictive
model of the ΔOS was established. The clinical cut-off point of the index was also
identified.
Results
For the patient group, OS was higher, but CPP and σCPP were lower for the rear position
(after reading the passage) compared to the front position (before reading the passage).
A significant portion (adjusted R2 = 77.7%) of the ΔOS was predicted by ΔCPP, tiredness score of the VFI, ΔσCPP, ΔσSR,
and ΔSR. The area under the curve of the newly developed index was .864 (sensitivity,
78.67%; specificity, 78.00%), and the index's criterion was >2.6489.
Conclusions
The newly developed Comprehensive Index of Vocal Fatigue (CIVF) can quantify vocal
fatigue in voice disorders, reflecting both acoustic and auditory perceptual changes
after a passage-reading task. Further studies should explore the responsiveness of
the CIVF and the impact of related factors on the CIVF in various voice disorders.
Key Words
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Article info
Publication history
Published online: May 06, 2023
Accepted:
April 10,
2023
Publication stage
In Press Corrected ProofFootnotes
This work was supported by the Ministry of Education of the Republic of Korea and the National Research Foundation of Korea (NRF-2022S1A5A8049773). This work was also supported by the Korea Medical Device Development Fund grant funded by the Korea Government (the Ministry of Science and ICT, the Ministry of Trade, Industry and Energy, the Ministry of Health & Welfare, the Ministry of Food and Drug Safety) (project number: RS-2020-KD000093).
Identification
Copyright
© 2023 The Voice Foundation. Published by Elsevier Inc. All rights reserved.
