Clusters of Deviant Speech Dimensions in the Dysarthrias Correlation matrices were used to demonstrate co-occurrence of deviant speech dimensions observed. Application of this technique led to the emergence of eight distinctive clusters of dysfunction. Each of seven neurologic disorders studied had its own unique group or pattern of clusters. However, any one cluster emerged in and was shared ... Research Article
Research Article  |   September 01, 1969
Clusters of Deviant Speech Dimensions in the Dysarthrias
 
Author Affiliations & Notes
  • Frederic L. Darley
    Mayo Clinic and Mayo Foundation, Rochester, Minnesota
  • Arnold E. Aronson
    Mayo Clinic and Mayo Foundation, Rochester, Minnesota
  • Joe R. Brown
    Mayo Clinic and Mayo Foundation, Rochester, Minnesota
Article Information
Research Articles
Research Article   |   September 01, 1969
Clusters of Deviant Speech Dimensions in the Dysarthrias
Journal of Speech, Language, and Hearing Research, September 1969, Vol. 12, 462-496. doi:10.1044/jshr.1203.462
History: Received October 4, 1968
 
Journal of Speech, Language, and Hearing Research, September 1969, Vol. 12, 462-496. doi:10.1044/jshr.1203.462
History: Received October 4, 1968

Correlation matrices were used to demonstrate co-occurrence of deviant speech dimensions observed. Application of this technique led to the emergence of eight distinctive clusters of dysfunction. Each of seven neurologic disorders studied had its own unique group or pattern of clusters. However, any one cluster emerged in and was shared by more than one disorder. Inspection of the dimensions present in a cluster permitted giving the cluster a logically determined name based usually on the defective physiology responsible for the cluster. Knowledge of the neuromuscular characteristics of each disorder led to deductions concerning the neuromuscular substrate for each cluster. Intercluster correlations yielded clues concerning co-occurrence of certain neuromuscular defects. Further inspection led to identification of the probable neuromuscular bases of individual deviant speech dimensions. These conclusions may serve as hypotheses for more accurate physiologic and neurophysiologic measurements to further delineate the problems of dysarthria.

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