19_MotorSpeechDisorders

19_MotorSpeechDisorders - Motor Speech Disorders Sphsc 449...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
Motor Speech Disorders Sphsc 449 8/11/2009
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Upper vs. Lower Motor Neuron Disease Lower motor neurons: Alpha, gamma motor neurons Spinal cord to muscle Pathologies here cause WEAKNESS Upper motor neurons: Direct pathways from cortex to spinal cord (corticospinal) Indirect pathways from cortex to spinal cord (rubrospinal for voluntary mvt; ventrolateral pathways for brainstem control of mvt) Pathologies here cause SPASTICITY, EXAGGERATED REFLEXES, WEAKNESS
Background image of page 2
The Dysarthrias Group of speech disorders caused by some sort of impairment in the central and/or peripheral nervous system Results in muscular weakness, slowness, incoordination, or alteration of muscle tone Interference with muscular control of phonation, respiration, resonation and/or articulation Several different types Distinct from apraxia of speech and aphasia Type of dysarthria is determined by the location of the lesion, not the disease. The disease can be infectious, vascular, neoplastic, traumatic, etc. Can be mild, moderate, or severe. Sounds very different at each level! Mayo Clinic classification of motor speech disorders
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Weismer et al., 2007
Background image of page 4
The Dysarthrias How to check for differences in respiration, phonation, resonation, and articulation:
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 09/09/2009 for the course SPHSC 449 taught by Professor Peter during the Summer '09 term at University of Washington.

Page1 / 16

19_MotorSpeechDisorders - Motor Speech Disorders Sphsc 449...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online