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Voice Onset Time in Individuals with Hyperfunctional Voice Disorders: Evidence for Disordered Vocal Motor Control
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McKenna, Victoria S.; Hylkema, Jennifer A.; Tardif, Monique C.; Stepp, Cara E. – Journal of Speech, Language, and Hearing Research, 2020
Purpose: This study examined vocal hyperfunction (VH) using voice onset time (VOT). We hypothesized that speakers with VH would produce shorter VOTs, indicating increased laryngeal tension, and more variable VOTs, indicating disordered vocal motor control. Method: We enrolled 32 adult women with VH (aged 20-74 years) and 32 age- and sex-matched…
Descriptors: Voice Disorders, Correlation, Psychomotor Skills, Vowels
Relative Fundamental Frequency in Children with and without Vocal Fold Nodules
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Murray, Elizabeth S. Heller; Segina, Roxanne K.; Woodnorth, Geralyn Harvey; Stepp, Cara E. – Journal of Speech, Language, and Hearing Research, 2020
Purpose: Relative fundamental frequency (RFF) is an acoustic measure that is sensitive to functional voice differences in adults. The aim of the current study was to evaluate RFF in children, as there are known structural and functional differences between the pediatric and adult vocal mechanisms. Method: RFF was analyzed in 28 children with vocal…
Descriptors: Acoustics, Measurement, Children, Evaluation Methods
Relative Fundamental Frequency Distinguishes between Phonotraumatic and Non-Phonotraumatic Vocal Hyperfunction
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Murray, Elizabeth S. Heller; Lien, Yu-An S.; Van Stan, Jarrad H.; Mehta, Daryush D.; Hillman, Robert E.; Noordzij, J. Pieter; Stepp, Cara E. – Journal of Speech, Language, and Hearing Research, 2017
Purpose: The purpose of this article is to examine the ability of an acoustic measure, relative fundamental frequency (RFF), to distinguish between two subtypes of vocal hyperfunction (VH): phonotraumatic (PVH) and non-phonotraumatic (NPVH). Method: RFF values were compared among control individuals with typical voices (N = 49), individuals with…
Descriptors: Comparative Analysis, Acoustics, Voice Disorders, Phonemes
Effects of Voice Therapy on Relative Fundamental Frequency during Voicing Offset and Onset in Patients with Vocal Hyperfunction
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Stepp, Cara E.; Merchant, Gabrielle R.; Heaton, James T.; Hillman, Robert E. – Journal of Speech, Language, and Hearing Research, 2011
Purpose: The purpose of this study was to determine whether the relative fundamental frequency (RFF) surrounding a voiceless consonant in patients with hyperfunctionally related voice disorders would normalize after a successful course of voice therapy. Method: Pre- and posttherapy measurements of RFF were compared in 16 subjects undergoing voice…
Descriptors: Voice Disorders, Therapy, Patients, Outcomes of Treatment
The Impact of Vocal Hyperfunction on Relative Fundamental Frequency during Voicing Offset and Onset
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Stepp, Cara E.; Hillman, Robert E.; Heaton, James T. – Journal of Speech, Language, and Hearing Research, 2010
Purpose: This study tested the hypothesis that individuals with vocal hyperfunction would show decreases in relative fundamental frequency (RFF) surrounding a voiceless consonant. Method: This retrospective study of 2 clinical databases used speech samples from 15 control participants and women with hyperfunction-related voice disorders: 82 prior…
Descriptors: Voice Disorders, Phonemes, Patients, Females