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Related Experiment Videos

Disordered speech production in aphasic and normal speakers

M F Schwartz1, E M Saffran, D E Bloch

  • 1Moss Rehabilitation Research Institute, Philadelphia, Pennsylvania 19141.

Brain and Language
|July 1, 1994
PubMed
Summary

This study compares speech errors in aphasia and normal speakers. Findings suggest disordered speech variation relates to activation delivery efficiency in spreading activation models.

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Area of Science:

  • Speech production
  • Neurolinguistics
  • Psycholinguistics

Background:

  • Investigating parallels between disordered speech in aphasia and normal speakers.
  • Examining theoretically interesting error types in jargon aphasia and normal speech corpora.

Observation:

  • Study 1 compared error rates and distributions in aphasic jargon and normal speech.
  • Study 2 explored how normal speakers' error patterns change with practice.

Findings:

  • A hypothesis on disordered speech variation is proposed, linking it to activation delivery efficiency.
  • Variation in disordered systems is tied to the relative ability to deliver activation to intended vs. unintended units within task time constraints.

Implications:

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  • Findings contribute to understanding speech production mechanisms and models.
  • This research offers insights into the nature of speech disorders and their relation to cognitive processes.