Psychometric and Acoustic Investigation of Identity and Phonotraumatic Vocal Hyperfunction
Marianna Rubino1, Maria Dietrich2, Katherine Verdolini Abbott3
1Department of Communication Sciences and Disorders, University of Tulsa, Tulsa, Oklahoma.
Summary
Individuals with phonotraumatic vocal hyperfunction (PVH) may alter vocal quality to express identity. This study suggests tailoring PVH rehabilitation to patients' identity needs for better outcomes.
Area of Science:
- Speech-language pathology
- Vocal acoustics
- Psycholinguistics
Background:
- Phonotraumatic vocal hyperfunction (PVH) is a voice disorder often associated with excessive vocal use.
- Understanding the interplay between identity and vocal production is crucial for voice disorders.
- Previous research has not fully explored how identity orientation and vocal congruence affect voice characteristics in individuals with PVH.
Purpose of the Study:
- To investigate the influence of identity orientation and vocal congruence on voice output characteristics.
- To compare nonperformers with suspected PVH to vocally healthy performers and nonperformers.
- To examine these influences across various identity conditions.
Main Methods:
- A prospective cross-sectional study design was employed.
- Participants included nonperformers with suspected PVH (n=11), healthy vocal performers (n=8), and healthy nonperformers (n=10).
- Participants improvised speech under four identity conditions, and completed identity and vocal congruence questionnaires. Voice outcome was mean cepstral peak prominence (mCPP).
Main Results:
- The PVH group demonstrated a significant relationship between personal identity orientation and mCPP variation.
- Increased personal identity orientation correlated with greater mCPP variation in the PVH group.
- Vocal congruence was not significantly associated with voice variations in any participant group.
Conclusions:
- Individuals with PVH may exhibit greater vocal quality variation as a means of identity expression.
- Rehabilitation strategies for PVH could benefit from being tailored to patients' identity-specific requirements.
- Further research is warranted to explore the complex relationship between identity and vocal behavior in voice disorders.
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