Disturbances of the temporal organization of speech following bilateral thalamic surgery in a patient with Parkinson's disease

Gerald J. Canter, Diana Roupas Van Lancker

Research output: Contribution to journalArticle

Abstract

This report summarizes a detailed analysis of the speech of a 45-yr-old man who had become dysarthric following bilateral thalamic surgery for the relief of symptoms of Parkinson's disease. His speech was characterized by a rapid rate and a mild-to-moderate articulatory deficit. Intelligibility was markedly reduced. The rapid rate was found to be the result of decreased syllable durations rather than to changes in pause or phrase patterns. Decreased syllable durations resulted from abnormal shortening of vowels. Consonant releases were found to be prolonged. This distorted temporal relationship among speech segments was considered to be an important factor in the patient's poor intelligibility and partially explained why uniform electronic expansion of his speech resulted in only negligible increase in intelligibility. It is hypothesized that this speech disturbance results from the interaction of central "metronomic" abnormality with a peripheral neuromotor articulatory impairment.

Original languageEnglish (US)
Pages (from-to)329-349
Number of pages21
JournalJournal of Communication Disorders
Volume18
Issue number5
DOIs
StatePublished - 1985

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surgery
Parkinson Disease
Disease
organization
deficit
Parkinson's Disease
Temporal Organization
Surgery
electronics
interaction
Intelligibility

ASJC Scopus subject areas

  • Language and Linguistics
  • Cognitive Neuroscience
  • Clinical Psychology
  • Experimental and Cognitive Psychology
  • Linguistics and Language

Cite this

Disturbances of the temporal organization of speech following bilateral thalamic surgery in a patient with Parkinson's disease. / Canter, Gerald J.; Van Lancker, Diana Roupas.

In: Journal of Communication Disorders, Vol. 18, No. 5, 1985, p. 329-349.

Research output: Contribution to journalArticle

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