Abstract
In two previous papers (Parker & Schneider, 1980; Schneider & Parker, 1987), we developed a model, based on Fechner’s assumption, which successfully predicted the relationship between loudness and intensity discrimination for tones presented in quiet and in notched noise. In the present paper, pure-tone intensity-increment thresholds and loudness matches were determined for several levels of a standard tone in the presence of a broadband masker whose spectrum level was set to 35 dB below that of the standard tone. The model was unable to relate loudness to intensity discrimination under these conditions. Thus, the spectral composition of the masker affects the relationship between loudness and intensity discrimination in ways that cannot be accounted for by the model.
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Marks, L. E. (1974). On scales of sensation: Prologomena to any future psychophysics that will be able to come forth as science.Perception & Psychophysics,16, 358–376.
Parker, S., &Schneider, B. (1980). Loudness and loudness discrimination.Perception & Psychophysics,28, 398–406.
Schneider, B. A., &Parker, S. (1987). Intensity discrimination and loudness for tones in notched noise.Perception & Psychophysics,41, 253–261.
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This work was supported by the Natural Sciences and Engineering Research Council of Canada.
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Schneider, B.A., Parker, S. Intensity discrimination and loudness for tones in broadband noise. Perception & Psychophysics 47, 92–94 (1990). https://doi.org/10.3758/BF03208170
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DOI: https://doi.org/10.3758/BF03208170