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. 1981 Nov;44(11):1013–1019. doi: 10.1136/jnnp.44.11.1013

Pathophysiology of dysarthria in cerebral palsy.

P D Neilson, N J O'Dwyer
PMCID: PMC491205  PMID: 7334387

Abstract

Electromyograms were recorded with hooked-wire electrodes from sixteen lip, tongue and jaw muscles in six normal and seven cerebral palsied adult subjects during a variety of speech and non-speech tasks. The recorded patterns of muscle activity fail to support a number of theories concerning the pathophysiology of dysarthria in cerebral palsy. There was no indication of weakness in individual articulator muscles. There was no evidence of uncontrolled sustained background activity or of abnormal tonic stretch reflex responses in lip or tongue muscles. Primitive or pathological reflexes could not be elicited by orofacial stimulation. No imbalance between positive and negative oral responses was observed. The view that random involuntary movement disrupts essentially normal voluntary control in athetosis was not supported. Each cerebral palsied subject displayed an idiosyncratic pattern of abnormal muscle activity which was reproduced across repetitions of the same phrase, indicating a consistent defect in motor programming.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Arnold K. S., Emanuel F. W. Spectral noise levels and roughness severity ratings for vowels produced by male children. J Speech Hear Res. 1979 Sep;22(3):613–626. doi: 10.1044/jshr.2203.613. [DOI] [PubMed] [Google Scholar]
  2. Bratzlavsky M. Electrophysiological study of direct and reflex responses evoked in facial muscles of normal and polyneuritic subjects. Z Neurol. 1972;201(3):218–226. doi: 10.1007/BF00316414. [DOI] [PubMed] [Google Scholar]
  3. CLEMENT M., TWITCHELL T. E. Dysarthria in cerebral palsy. J Speech Hear Disord. 1959 May;24(2):118–122. doi: 10.1044/jshd.2402.118. [DOI] [PubMed] [Google Scholar]
  4. DENNY-BROWN D. The nature of apraxia. J Nerv Ment Dis. 1958 Jan;126(1):9–32. doi: 10.1097/00005053-195801000-00003. [DOI] [PubMed] [Google Scholar]
  5. Farmer A. Stop cognate production patterns in adult athetotic cerebral-palsied speakers. Folia Phoniatr (Basel) 1977;29(2):154–162. doi: 10.1159/000264084. [DOI] [PubMed] [Google Scholar]
  6. HARDY J. C. Intraoral breath pressure in cerebral palsy. J Speech Hear Disord. 1961 Nov;26:309–319. doi: 10.1044/jshd.2604.309. [DOI] [PubMed] [Google Scholar]
  7. HARDY J. C. LUNG FUNCTION OF ATHETOID AND SPASTIC QUADRIPLEGIC CHILDREN. Dev Med Child Neurol. 1964 Aug;6:378–388. doi: 10.1111/j.1469-8749.1964.tb08139.x. [DOI] [PubMed] [Google Scholar]
  8. HIXON T. J., HARDY J. C. RESTRICTED MOTILITY OF THE SPEECH ARTICULATORS IN CEREBRAL PALSY. J Speech Hear Disord. 1964 Aug;29:293–306. doi: 10.1044/jshd.2903.293. [DOI] [PubMed] [Google Scholar]
  9. Held R. Plasticity in sensory-motor systems. Sci Am. 1965 Nov;213(5):84–94. doi: 10.1038/scientificamerican1165-84. [DOI] [PubMed] [Google Scholar]
  10. INGRAM T. T., BARN J. A description and classification of common speech disorders associated with cerebral palsy. Cereb Palsy Bull. 1961;3:57–69. doi: 10.1111/j.1469-8749.1961.tb10333.x. [DOI] [PubMed] [Google Scholar]
  11. KOVEN L. J., LAMM S. S. The athetoid syndrome in cerebral palsy. II. Clinical aspects. Pediatrics. 1954 Sep;14(3):181–192. [PubMed] [Google Scholar]
  12. Kent R. D., Netsell R., Bauer L. L. Cineradiographic assessment of articulatory mobility in the dysarthrias. J Speech Hear Disord. 1975 Nov;40(4):467–480. doi: 10.1044/jshd.4004.467. [DOI] [PubMed] [Google Scholar]
  13. Kent R., Netsell R. A case study of an ataxic dysarthric: cineradiographic and spectrographic observations. J Speech Hear Disord. 1975 Feb;40(1):115–134. doi: 10.1044/jshd.4001.115. [DOI] [PubMed] [Google Scholar]
  14. Kent R., Netsell R. Articulatory abnormalities in athetoid cerebral palsy. J Speech Hear Disord. 1978 Aug;43(3):353–373. doi: 10.1044/jshd.4303.353. [DOI] [PubMed] [Google Scholar]
  15. LIPPOLD O. C. J. The relation between integrated action potentials in a human muscle and its isometric tension. J Physiol. 1952 Aug;117(4):492–499. doi: 10.1113/jphysiol.1952.sp004763. [DOI] [PMC free article] [PubMed] [Google Scholar]
  16. Larson C. R., Folkins J. W., McClean M. D., Muller E. M. Sensitivity of the human perioral reflex to parameters of mechanical stretch. Brain Res. 1978 May 5;146(1):159–164. doi: 10.1016/0006-8993(78)90226-3. [DOI] [PubMed] [Google Scholar]
  17. MYSAK E. D. DYSARTHRIA AND OROPHARYNGEAL REFLEXOLOGY: A REVIEW. J Speech Hear Disord. 1963 Aug;28:252–260. doi: 10.1044/jshd.2803.252. [DOI] [PubMed] [Google Scholar]
  18. MacNeilage P. F. Motor control of serial ordering of speech. Psychol Rev. 1970 May;77(3):182–196. doi: 10.1037/h0029070. [DOI] [PubMed] [Google Scholar]
  19. Milner-Brown H. S., Stein R. B. The relation between the surface electromyogram and muscular force. J Physiol. 1975 Apr;246(3):549–569. doi: 10.1113/jphysiol.1975.sp010904. [DOI] [PMC free article] [PubMed] [Google Scholar]
  20. Neilson P. D., Andrews G., Guitar B. E., Quinn P. T. Tonic stretch reflexes in lip, tongue and jaw muscles. Brain Res. 1979 Dec 14;178(2-3):311–327. doi: 10.1016/0006-8993(79)90696-6. [DOI] [PubMed] [Google Scholar]
  21. Neilson P. D. Measurement of involuntary arm movement in athetotic patients. J Neurol Neurosurg Psychiatry. 1974 Feb;37(2):171–177. doi: 10.1136/jnnp.37.2.171. [DOI] [PMC free article] [PubMed] [Google Scholar]
  22. O'Dwyer N. J., Quinn P. T., Guitar B. E., Andrews G., Neilson P. D. Procedures for verification of electrode placement in EMG studies of orofacial and mandibular muscles. J Speech Hear Res. 1981 Jun;24(2):273–288. doi: 10.1044/jshr.2402.273. [DOI] [PubMed] [Google Scholar]
  23. SHEPPARD J. J. CRANIO-OROPHARYNGEAL MOTOR PATTERNS IN DYSARTHRIA ASSOCIATED WITH CEREBRAL PALSY. J Speech Hear Res. 1964 Dec;7:373–380. doi: 10.1044/jshr.0704.373. [DOI] [PubMed] [Google Scholar]
  24. Seron X., Deloche G., Moulard G., Rousselle M. A computer-based therapy for the treatment of aphasic subjects with writing disorders. J Speech Hear Disord. 1980 Feb;45(1):45–58. doi: 10.1044/jshd.4501.45. [DOI] [PubMed] [Google Scholar]
  25. WOLFE W. G. A comprehensive evaluation of fifty cases of cerebral palsy. J Speech Disord. 1950 Sep;15(3):234–251. doi: 10.1044/jshd.1503.234. [DOI] [PubMed] [Google Scholar]

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