Theodoros, D.G., Murdoch, B.E., & Stokes, P. (1995). A physiological
analysis of articulatory dysfunction in dysarthric speakers following severe
closed-head injury. Brain Injury, 9(3),237-254.
Type
of
Study |
Research study
with controls |
| Subjects |
16 males, 2 females;
ages 21-55; at least 3 months post-onset
Gender-matched, age-matched controls |
| Diagnoses |
Severe TBI
Normal controls |
Speech
Condition |
Dysarthria |
| Purpose |
To physiologically assess strength, endurance,
and rate of repetitive movements of lips and tongue with lip and tongue
force transducers |
| Methods |
Perceptual assessment-speech sample assessed
by 2 SLP's for articulation
Instructional assessment-lip force transducers
with 11 measurements from 4 tasks and tongue force transducers with 11
measurements from 4 tasks |
| Results |
17/18 (94%) had articulation and intelligibility
deficits
Significant impairment of lip and tongue
function based on strength, endurance, and rate measures
Articulatory subsystem dysfunction
More tongue dysfunction than lip dysfunction |
Treatment
Implications |
Assess each motor subsystem independently
because some may be more impaired than others
Identify neuropathophysiological bases
for deviant speech
Improve tongue strength, endurance, and
rate
Improve lip strength, rate, and sustaining
maximum lip contractions
Individualize therapy |
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