Acceleration and Weakness in Parkinsonian Dysarthria This report presents some of the underlying neuromuscular mechanisms of dysarthric speech production as they are manifested in selected individuals with parkinsonism. Earlier explanations of parkinsonian dysarthria emphasized that the balanced hypertonus of rigidity formed the basis of reduced range of movements in speech. The present data reveal two problems ... Articles
Articles  |   May 01, 1975
Acceleration and Weakness in Parkinsonian Dysarthria
 
Author Notes
Article Information
Articles   |   May 01, 1975
Acceleration and Weakness in Parkinsonian Dysarthria
Journal of Speech and Hearing Disorders, May 1975, Vol. 40, 170-178. doi:10.1044/jshd.4002.170
History: Received August 9, 1974 , Accepted September 12, 1974
 
Journal of Speech and Hearing Disorders, May 1975, Vol. 40, 170-178. doi:10.1044/jshd.4002.170
History: Received August 9, 1974; Accepted September 12, 1974

This report presents some of the underlying neuromuscular mechanisms of dysarthric speech production as they are manifested in selected individuals with parkinsonism. Earlier explanations of parkinsonian dysarthria emphasized that the balanced hypertonus of rigidity formed the basis of reduced range of movements in speech. The present data reveal two problems in the neuromuscular control signals that can result in a reduced range of speech movements in the absence of rigidity. These neuromuscular problems are described as acceleration and weakness. The implication of these findings for the evaluation and treatment of parkinsonian dysarthria is discussed.

Order a Subscription
Pay Per View
Entire Journal of Speech and Hearing Disorders content & archive
24-hour access
This Article
24-hour access