Title page for ETD etd-04192011-095645

Type of Document Master's Thesis
Author Boudreaux, Danielle Marie
Author's Email Address dboud17@tigers.lsu.edu, daniboudreaux@gmail.com
URN etd-04192011-095645
Title Using the Ambulatory Phonation Monitor to Measure the Vocal Parameters of Older People with and without Parkinson's disease
Degree Master of Arts (M.A.)
Department Communication Sciences & Disorders
Advisory Committee
Advisor Name Title
Donovan, Neila Committee Chair
Hoffman, Paul Committee Member
Kim,Yunjung Committee Member
  • Ambultory Phonation Monitor
  • Parkinson's disease
  • Average Fundamental Frequency
  • Average Amplitude
  • Phonation Time
Date of Defense 2011-04-15
Availability unrestricted
Our project was designed to determine if there was a difference in vocal parameters, including mean fundamental frequency, mean amplitude, and total phonation time, between individuals diagnosed with Parkinson’s disease (PD) and age-and gender-matched individuals without a diagnosis of any neurologic or neurodegenerative diseases (NO PD) using the Ambulatory Phonation Monitor (APM: KayPENTAX, Lincoln Park, New Jersey). The APM was designed to gather objective data in a naturalistic environment by having participants wear the device over the course of three 8-hour days. The APM measured total phonation time, mean amplitude, and mean fundamental frequency throughout that time. The participants wore the APM on what they deemed “typical” days where similar routines were observed and “out of the ordinary” activities did not occur. Data collection was repeated three times to establish the reliability of the data collected. Descriptive statistics and two-way repeated measure ANOVA were computed using SPSS.

NO PD group exhibited significantly higher mean amplitudes in comparison to the PD group. The two groups did not differ in mean fundamental frequency or phonation time. When asked to estimate the amount of talking time, the PD group overestimated their talk time significantly more than the NO PD group. These data suggest that variability of vocal parameters exist among individuals diagnosed with PD and age matched individuals with no diagnosis of neurologic or neurodegenerative disease.

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