Abstract
The relationship between speech intelligibility on a single-word identification test and the average second-formant (F2) slope of selected test words was examined for a group of 25 men and ten women with amyotrophic lateral sclerosis (ALS). A Spearman rank-order correlation coefficient greater than 0.80 was obtained for both the male and female subjects. This moderately high correlation indicates that the F2 slope index is a useful acoustic measure of speech proficiency in ALS. F2 slope indices are reported for normal control populations of geriatric men and women. In addition, progressive deterioration of the F2 slope index is illustrated in a case study of one woman with ALS.
Original language | English (US) |
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Pages (from-to) | 347-358 |
Number of pages | 12 |
Journal | Clinical Linguistics and Phonetics |
Volume | 3 |
Issue number | 4 |
DOIs | |
State | Published - 1989 |
ASJC Scopus subject areas
- Language and Linguistics
- Linguistics and Language
- Speech and Hearing