Journal of Speech and Hearing Research Vol.31 503-510 September 1988.
© American Speech-Language-Hearing Association
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A Comparison of Photodetector and Endoscopic Evaluations of Velopharyngeal Function

Michael P. Karnell 1
Earl J. Seaver III 2

Rodger M. Dalston 3
1 University of Chicago
2 Northern Illinois University
3 University of North Carolina

Simultaneous videoendoscopic and photodetection analyses were made of specific onset and offset times of velopharyngeal opening and closing in two normal speaking subjects. Both procedures were found to have acceptable measurement repeatability and to agree with each other when used to determine movement changes. It is felt that when used together, these techniques contribute to improved understanding of velopharyngeal activity during speech.

Submitted on February 13, 1987
Accepted on November 6, 1987


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