Encyclopedia of Clinical Neuropsychology

2018 Edition
| Editors: Jeffrey S. Kreutzer, John DeLuca, Bruce Caplan

Dysarthria

  • Carole R. RothEmail author
  • Ignatius Nip
Reference work entry
DOI: https://doi.org/10.1007/978-3-319-57111-9_880

Definition

Dysarthria is a group of motor speech disorders resulting from disturbed muscular control of the speech mechanism due to the damage of the peripheral or central nervous system causing weakness, incoordination, or paralysis of speech musculature. Physiologic characteristics include abnormal or disturbed strength, speed, range, steadiness, tone, and accuracy of muscle movements. The underlying problem is one that affects all movements of the affected muscles. Therefore, disorders of feeding and swallowing often co-occur with the speech disorder. Dysarthria can cause significantly reduced speech intelligibility due to disturbed pitch, loudness, voice quality, resonance, respiratory support for speech, prosody, and articulation.

Categorization

The features of the dysarthria take different forms depending on the level of neurologic impairment or the different types of neurologic dysfunction. An experienced speech-language pathologist can distinguish varieties of dysarthria that...
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References and Readings

  1. Darley, F. L., Aronson, A. E., & Brown, J. R. (1969a). Clusters of deviant speech dimensions in the dysarthrias. Journal of Speech and Hearing Research, 12, 462–496.PubMedCrossRefPubMedCentralGoogle Scholar
  2. Darley, F. L., Aronson, A. E., & Brown, J. R. (1969b). Differential diagnostic patterns of dysarthria. Journal of Speech and Hearing Research, 12, 224.CrossRefGoogle Scholar
  3. Duffy, J. R. (2013). Motor speech disorders: Substrates, differential diagnosis, and management (3rd ed.). St. Louis: Elsevier Mosby.Google Scholar
  4. Freed, D. (2000). Motor speech disorders: Diagnosis and treatment. San Diego: Singular Publishing.Google Scholar
  5. Hedge, M. N. (1996). Pocket guide to assessment in speech-language pathology. San Diego: Singular Publishing.Google Scholar
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  8. Yorkston, K., Beukelman, D., Strand, E. A., & Hakel, M. (2010). Management of motor speech disorders in children and adults (3rd ed.). Austin: Pro-Ed.Google Scholar

Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Otolaryngology Clinic, Speech DivisionNaval Medical CenterSan DiegoUSA
  2. 2.School of Speech, Language, and Hearing SciencesSan Diego State UniversitySan DiegoUSA