Summary
Objectives
Interoception may play a role in how individuals perceive their voice disorder. The
first objective of this study was to investigate relationships between interoception
and voice disorder class (functional, structural, neurological). The second objective
was to determine relationships between interoception and voice-related outcome measures
between patients with functional voice and upper airway disorders and typical voice
users. The third objective was to determine whether patients with primary muscle tension
dysphonia (a type of functional voice disorder) had different levels of interoceptive
awareness than typical voice users.
Study Design
Prospective cohort study.
Methods
One hundred subjects with voice disorders completed the multidimensional assessment
of interoceptive awareness-2 (MAIA-2). Voice diagnosis and singing experience were
also acquired from each patient's medical chart. Voice handicap (VHI-10) and Part
1 of the vocal fatigue index (VFI-Part1) scores were obtained from patients diagnosed
with functional voice and upper airway disorders. MAIA-2, VHI-10, VFI-Part1, and singing
experience were also obtained from 25 typical voice users. Multivariable linear regression
models were used to assess the association between response variables and voice disorder
class, adjusting for singing experience, gender, and age.
Results
There were no significant group differences between voice disorder class (functional,
structural, neurological) after adjusting for multiple comparisons. Participants with
functional voice and upper airway disorders who scored significantly higher on the
VHI-10 and VFI-Part1 had lower Attention Regulation sub-scores on the MAIA-2 (P's<0.05). Patients with primary muscle tension dysphonia scored significantly lower
on the Emotional Awareness MAIA-2 subscale than typical voice users (P=0.005).
Conclusion
Patients with functional voice disorders with lower capabilities to attend to body
sensations may score higher on voice-related patient-reported outcome measures, like
the VHI-10 and VFI-Part1. Patients with primary muscle tension dysphonia may also
have lower capabilities in processing their body sensations than typical voice users.
Key Words
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Article info
Publication history
Published online: April 01, 2023
Accepted:
March 2,
2023
Publication stage
In Press Corrected ProofFootnotes
Supported by University of Texas at Dallas startup funds, University of Texas at Dallas work-study, and by NIDCD grant R21DC019207. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institute on Deafness and Other Communication Disorders or the National Institutes of Health.
Identification
Copyright
© 2023 The Voice Foundation. Published by Elsevier Inc. All rights reserved.
