The effect of pure-tone forward masking on overshoot.
The overshoot effect can be reduced by temporary hearing loss induced by aspirin or exposure to intense sound. The present study simulated a hearing loss at 4.0 kHz via pure-tone forward masking and examined the effect of the simulation on threshold for a 10-ms, 4.0-kHz signal presented 1 ms after the onset of a 400-ms, broadband noise masker whose spectrum level was 20 dB SPL. Masker frequency was 3.6, 4.0, or 4.2 kHz, and masker level was 80 dB SPL. Subject-dependent delays were determined such that 10 or 20 dB of masking at 4.0 kHz was produced. In general, the pure-tone forward masker did not reduce the simultaneous-masked threshold, suggesting that elevating threshold with a pure-tone forward masker does not sufficiently simulate the effect of a temporary hearing loss on overshoot.
Hicks
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ML
Department of Speech and Hearing Science, Arizona State University, Tempe 85287-0102.
Bacon
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SP
D000293:Adolescent; D000328:Adult; D001288:Attention / Q000502:physiology*; D001305:Auditory Fatigue / Q000502:physiology*; D001309:Auditory Threshold / Q000502:physiology; D003051:Cochlea / Q000503:physiopathology; D005260:Female; D006317:Hearing Loss, Noise-Induced / Q000503:physiopathology*; D006801:Humans; D008144:Loudness Perception / Q000502:physiology; D010470:Perceptual Masking / Q000502:physiology*; D010897:Pitch Discrimination / Q000502:physiology*; D011571:Psychoacoustics; D012307:Risk Factors; D013018:Sound Spectrography