Temporal Acoustic Measures of Dysarthria Associated with Amyotrophic Lateral Sclerosis The purpose of this study was to investigate stop-gap duration, voice onset time (VOT), and vowel duration in intelligible speakers with amyotrophic lateral sclerosis (ALS). Broadband sound spectrograms were used to measure 8 normal and 8 ALS speakers' intelligible speech productions of monosyllabic words containing word-initial stop-plosive consonants (/p, t, ... Research Article
Research Article  |   March 01, 1987
Temporal Acoustic Measures of Dysarthria Associated with Amyotrophic Lateral Sclerosis
 
Author Affiliations & Notes
  • Anthony J. Caruso
    University of Wisconsin-Madison
  • Estelle Klasner Burton
    Sewall Rehabilitation Center, Denver, CO
Article Information
Research Articles
Research Article   |   March 01, 1987
Temporal Acoustic Measures of Dysarthria Associated with Amyotrophic Lateral Sclerosis
Journal of Speech, Language, and Hearing Research, March 1987, Vol. 30, 80-87. doi:10.1044/jshr.3001.80
History: Received January 17, 1986 , Accepted August 21, 1986
 
Journal of Speech, Language, and Hearing Research, March 1987, Vol. 30, 80-87. doi:10.1044/jshr.3001.80
History: Received January 17, 1986; Accepted August 21, 1986

The purpose of this study was to investigate stop-gap duration, voice onset time (VOT), and vowel duration in intelligible speakers with amyotrophic lateral sclerosis (ALS). Broadband sound spectrograms were used to measure 8 normal and 8 ALS speakers' intelligible speech productions of monosyllabic words containing word-initial stop-plosive consonants (/p, t, k, b, d, g/). Significant differences were found between the two groups for both vowel duration and stop-gap duration; moreover, correlational analysis indicated that the ALS speakers, as a group, exhibited a direct relationship between stop-gap and vowel durations associated with productions of /t/ and /k/. No significant differences were found between the two talker groups for VOT. Results will be related to the neuroanatomical and physiological mechanisms involved in dysarthric (ALS) speech.

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