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Journal of Speech and Hearing Research Vol.13 426-437 June 1970.
© American Speech-Language-Hearing Association
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Sensorineural Hearing Loss and Upward Spread of Masking

Ellen S. Martin
J. M. Pickett
Gallaudet College, Washington, D.C.

Pure-tone auditory thresholds were obtained in quiet and in three levels of masking noise for one normal-hearing group and five groups of subjects with different degrees of sensorineural loss. The masker was a low-pass noise, cut off at 250 Hz. It was presented at overall levels of 77, 97, and 107 dB SPL. Pure-tone thresholds were obtained at test frequencies within and above the masking band. A measure of noise rejection slope was used to describe spread of masking. Degree of loss, configuration of loss, and level of masking noise appear to have marked influences on upward spread of masking patterns in sensorineural subjects.






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