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- Title
Some effects of multiple sclerosis on speech perception in noise: Preliminary findings.
- Authors
Lewis, M. Samantha; Lilly, David J.; Hutter, Michele; Bourdette, Dennis N.; Saunders, Julie; Fausti, Stephen A.
- Abstract
The present investigation examined speech perception in noise of adults with and without multiple sclerosis (MS). Institute of Electrical and Electronic Engineers (IEEE) sentences were presented at a constant level of 65 dBA Leq (equivalent continuous noise level [4 dB exchange rate]) from a loudspeaker located at 0-degree horizontal azimuth and 1.2 m from the study participant. Uncorrelated multitalker babble was presented from four loudspeakers positioned at 45-, 135-, 225-, and 315-degree azimuths and 1.7 m from the study participant. The starting presentation level for the babble was 55 dBA Leq. The level of the babble was increased systematically in 1 dB steps until the subject obtained 0% key words correct on the IEEE sentences. Results revealed a significant difference in speech perception between the two groups at nine signal-to-noise ratios. Some clinical implications of these results are discussed.
- Subjects
MULTIPLE sclerosis; SPEECH perception; PSYCHOLINGUISTICS; SIGNAL-to-noise ratio; INFORMATION measurement; SIGNAL processing
- Publication
Journal of Rehabilitation Research & Development, 2006, Vol 43, Issue 1, p91
- ISSN
0748-7711
- Publication type
Article
- DOI
10.1682/JRRD.2004.09.0113