McHenry, M.A. (1999). Aerodynamic, acoustic, and perceptual measures of
nasality following traumatic brain injury. Brain Injury, 13(4),
281-290.
Type
of
Study |
Research
study |
| Subjects |
20
males, 11 females; ages 13-45; 2-288 months post-onset |
| Diagnoses |
TBI |
Speech
Condition |
Potential
hypernasality |
| Purpose |
To
determine the relationship between commonly used assessment
procedures and perceived nasality following TBI |
| Methods |
Assessed
velopharyngeal airway resistance using a pneumotachograph
and differential pressure transducer
Nasalance assessed with the Nasometer
Speech sample judged perceptually using direct magnitude
estimation scaling |
| Results |
High
number of false positives for all three analyses
Decreased speaking rate most probable cause of false positives
Nasalance data most closely reflected perceptual judgments
of nasality |
Treatment
Implications |
Nasalance
may be an efficient and representative measurement of
nasality
It is important to assess the relative contribution of
nasality to the overall speech impairment |
| |
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