Some effects of multiple sclerosis on speech perception in noise: Preliminary findings.
JOURNAL OF REHABILITATION RESEARCH AND DEVELOPMENT(2006)
摘要
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 L-eq (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 L-eq. The level of the babble was increased systematically in I 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.
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关键词
adults,auditory function,auditory processing,hearing,IEEE sentences,multiple sclerosis,multitalker babble,noise,signal-to-noise ratio,speech perception
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