Abstract

Although associations between prosodic disturbances and neurologic lesion have been mentioned in the clinical literature, little progress has been made in the acoustic description of the abnormal prosodic patterns that typify neurologic dysfunctions. This report is a preliminary acoustic description of the prosodic disturbances associated with ataxic dysarthria, apraxia of speech, parkinsonian dysarthria, and right-hemisphere dysarthria. Several types of prosodic disturbance are identified and speculations are offered concerning their relation to site of lesion. In general, the patterns of prosodic disturbance described acoustically in this report confirm and elaborate G. H. Monrad-Krohn's ( Problems of dynamic neurology. Jerusalem: Hebrew Univ. Press, 1963) observations.

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