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Intensity and fundamental frequency variability before and after two behavioral treatments for aprosodia
Harrison N. Jones, Rahul Shrivastav, Emily Plowman, John C. Rosenbek

Emerging data suggests that aprosodia may be amenable to behavioral treatment. The present study investigates the use of acoustic analysis to quantify response to two speech treatments provided to three participants with expressive aprosodia. The mean fundamental frequency (F0) and intensity as well as the variability in F0 and intensity of several test sentences were calculated before and after treatment. Results indicated that F0 variability increased significantly following the first treatment, but not after the second. F0 variability was also found to be significantly different across emotions and participants. No significant differences in intensity variability were observed with treatment or across the four emotions, but significant differences were found across the three participants. These data suggest behavioral treatments may increase F0 variation in patients with expressive aprosodia.

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