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Direct linkGroll, Matti D.; Hablani, Surbhi; Stepp, Cara E. – Journal of Speech, Language, and Hearing Research, 2021
Purpose: Prior work suggests that voice onset time (VOT) may be impacted by laryngeal tension: VOT means decrease when individuals with typical voices increase their fundamental frequency (f[subscript o]) and VOT variability is increased in individuals with vocal hyperfunction, a voice disorder characterized by increased laryngeal tension. This…
Descriptors: Time, Acoustics, Phonemes, Speech
Groll, Matti D.; McKenna, Victoria S.; Hablani, Surbhi; Stepp, Cara E. – Journal of Speech, Language, and Hearing Research, 2020
Purpose: The goal of this study was to explore the relationships among vocal effort, extrinsic laryngeal muscle activity, and vocal tract length (VTL) within healthy speakers. We hypothesized that increased vocal effort would result in increased suprahyoid muscle activation and decreased VTL, as previously observed in individuals with vocal…
Descriptors: Human Body, Speech Communication, Physiology, Vowels
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
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
McKenna, Victoria S.; Llico, Andres F.; Mehta, Daryush D.; Perkell, Joseph S.; Stepp, Cara E. – Journal of Speech, Language, and Hearing Research, 2017
Purpose: This study examined the relationship between the magnitude of neck-surface vibration (NSV[subscript Mag]; transduced with an accelerometer) and intraoral estimates of subglottal pressure (P'[subscript sg]) during variations in vocal effort at 3 intensity levels. Method: Twelve vocally healthy adults produced strings of /p?/ syllables in 3…
Descriptors: Speech, Human Body, Acoustics, Measurement Equipment
Murray, Elizabeth S. Heller; Mendoza, Joseph O.; Gill, Simone V.; Perkell, Joseph S.; Stepp, Cara E. – Journal of Speech, Language, and Hearing Research, 2016
Purpose: The purpose of this study was to determine the effects of biofeedback on control of nasalization in individuals with typical speech. Method: Forty-eight individuals with typical speech attempted to increase and decrease vowel nasalization. During training, stimuli consisted of consonant-vowel-consonant (CVC) tokens with the center vowels…
Descriptors: Biofeedback, Vowels, Intonation, Distinctive Features (Language)
