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Communication Sciences and Disorders Commons™
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Full-Text Articles in Communication Sciences and Disorders
Voice Onset Time As A Clinical Indicator Of Hypofunctional Voice Disorders., Amanda Arnold, Lisa Phillips, Lindsay Pickler, Whitney White, Amanda Mccamey, Christopher Mccrea
Voice Onset Time As A Clinical Indicator Of Hypofunctional Voice Disorders., Amanda Arnold, Lisa Phillips, Lindsay Pickler, Whitney White, Amanda Mccamey, Christopher Mccrea
ETSU Faculty Works
The purpose of this study was to measure and compare the voice onset times (VOTs) of healthy individuals using a normal and breathy voice in an effort to determine if VOT can be used as a noninvasive clinical indicator of laryngeal function. Recordings were made of 20 adults between the ages of 20-48 with normal laryngeal function, each using a normal (Group 1) and breathy voice (Group 2). The participants’ productions were designed and collected in such a manner to control for speaking rate, vowel context, pitch, and loudness; all of which have been shown to influence VOT. A mixed …
The Effects Of Deep Brain Stimulation On The Speech Of Patients With Parkinson's Disease, Erin Suzanne Bjarnason
The Effects Of Deep Brain Stimulation On The Speech Of Patients With Parkinson's Disease, Erin Suzanne Bjarnason
Theses and Dissertations
Deep brain stimulation (DBS) of the subthalamic nucleus (STN) has received more attention in recent years as a treatment option for regulating the symptoms of Parkinson's disease. Previous studies of DBS documented consistent improvements in motor function but more variability in speech outcomes. In the present study, six participants diagnosed with idiopathic Parkinson's disease who reported worsened speech with stimulation were recorded performing speech acoustic tasks with the stimulators on, and again with the stimulators off. Improvements were noted for most participants in measurements of formant slopes, long term average spectrum (LTAS) of a sustained vowel, and spirantization with stimulation …