| Autor: |
Schechter, M. A., Rupp, R. R., Calder, H. B., Milburn, B. |
| Zdroj: |
Journal of the Acoustical Society of America; 1979, Vol. 66 Issue S1, pS61-S61, 1p |
| Abstrakt: |
An impedance technique has been employed to quantitatively compare the temporal characteristics of the stapedial reflex in seven normal subjects and seven subjects with multiple sclerosis. Measures of latency and rise time of the reflex were collected in both groups. Analysis of the results revealed significant mean group differences for both the latency and rise time measures. Eliciting stimuli were tone bursts of 25 ms (2.5 ms rise/fall) and tones with a duration of 1 second (2.5 ms rise/fall) at both 10 and 20 dB SL. Three of the seven multiple sclerotic subjects displayed latency or rise time measures that were two or more standard deviations above the mean. The remainder of the pathological group fell within 'normal' limits. Aberrant reflex characteristics would only be expected in those multiple sclerotic subjects with demyelination occurring within the auditory pathways. [Work supported by the Veterans Administration Hospital.] [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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