Authors: Hanson WR, Metter EJ
Title: DAF as instrumental treatment for dysarthria in progressive supranuclear palsy: A case report
Source: Journal of Speech and Hearing Disorders 1980 45(2): 268-276
Year: 1980
Research Design: Single Case Design

In this case study, a 59-yr-old male with progressive supranuclear palsy and hypokinetic dysarthria wore a small, solid state, battery operated, delayed auditory feedback (DAF) device to reduce speech rate and to aid speech intelligibility. Measures of speech rate, intensity, and overall intelligibility indicate that when the instrument was worn, the S's speech was slower, vocal intensity increased, and intelligibility was markedly improved. The application of DAF to the treatment of communication disorders is discussed.

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