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Related Experiment Videos

Phonetic variation in dysarthric speech as a function of sampling task

A Brown1, G J Docherty

  • 1Speech and Language Therapy Department, Darlington Memorial Hospital, Cleveland, UK.

European Journal of Disorders of Communication : the Journal of the College of Speech and Language Therapists, London
|January 1, 1995
PubMed
Summary

Dysarthric speakers show variations in speech patterns between reading and spontaneous speech. Read speech may not fully represent dysarthric speakers' natural communication, impacting assessment.

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Area of Science:

  • Speech-Language Pathology
  • Linguistics
  • Neurology

Background:

  • Phonetic performance in normal speakers differs between reading and spontaneous speech.
  • Understanding these variations in dysarthric speakers is crucial for accurate assessment.

Purpose of the Study:

  • To investigate if dysarthric speakers exhibit similar phonetic variations across speech tasks.
  • To compare acoustic parameters in reading versus spontaneous speech in mild dysarthric individuals.

Main Methods:

  • Acoustic analysis of segmental and prosodic parameters.
  • Involved five mild dysarthric speakers and five matched controls.
  • Compared speech performance in reading and spontaneous tasks.

Main Results:

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  • Significant variations were observed in breath-pause position, unstressed vowel duration, and voice-onset time.
  • These variations occurred across different sampling tasks in dysarthric speakers.
  • Read speech parameters differed from spontaneous speech in the dysarthric group.

Conclusions:

  • Read speech material may not be fully representative of dysarthric speakers' spontaneous speech.
  • Findings suggest current dysarthria assessment methods relying on read material may be insufficient.
  • Further research is needed to explore the extent and implications of these differences for clinical practice.