Journal ArticleDOI
Temporal Acoustic Measures of Dysarthria Associated with Amyotrophic Lateral Sclerosis
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Investigation of stop-gap duration, voice onset time (VOT), and vowel duration in intelligible speakers with amyotrophic lateral sclerosis 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/.Abstract:
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) speechread more
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Journal ArticleDOI
Acoustic and intelligibility characteristics of sentence production in neurogenic speech disorders.
TL;DR: In this article, the authors examined the relationship between scaled speech intelligibility and selected acoustic variables in persons with dysarthria and found that the relationship was not as strong as that of control speakers and speakers with amyotrophobia.
Journal ArticleDOI
Acoustic studies of dysarthric speech: methods, progress, and potential.
TL;DR: The authors describe the major types of acoustic analysis available for the study of speech, specify the components needed for a modern speech analysis laboratory, including equipment for recording and analysis, and list possible measurements for various aspects of phonation, articulation and resonance, as they might be manifest in neurologically disordered speech.
Journal ArticleDOI
Toward an acoustic typology of motor speech disorders
Ray D. Kent,Y.‐J. Kim +1 more
TL;DR: This paper reviews studies showing that specific acoustic analyses have demonstrated or potential value toward the overall goal of constructing acoustic profiles of dysarthria and apraxia of speech.
Journal ArticleDOI
Physiologic Deficits in the Orofacial System Underlying Dysarthria in Amyotrophic Lateral Sclerosis
TL;DR: It was found that the ALS patients with dysarthria were impaired in all tasks compared to the normal subjects, and that some measures revealed impairment even in those ALS patients who were not yet dysarthric, suggesting that more severe Dysarthria may be largely due to slower movement of the orofacial structures until substantial muscle strength has been lost.
Journal ArticleDOI
Dysarthria in amyotrophic lateral sclerosis: A review
Barbara Tomik,R J Guiloff +1 more
TL;DR: There is a need to compare the different methods used to assess dysarthria and for controlled clinical trials to assess therapeutic strategies and the current state of knowledge on the clinical features, differential diagnosis, pathophysiology, investigations and management of Dysarthria in ALS patients.