Schneider B A, Parker S
University of Toronto, Mississauga, Ontario, Canada.
Percept Psychophys. 1990 Jan;47(1):92-4. doi: 10.3758/bf03208170.
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.
在之前的两篇论文中（帕克和施耐德，1980年；施耐德和帕克，1987年），我们基于费希纳的假设开发了一个模型，该模型成功预测了在安静环境和带通噪声中呈现的纯音的响度与强度辨别之间的关系。在本文中，在存在宽带掩蔽器的情况下，针对几个标准音水平确定了纯音强度增量阈值和响度匹配，该宽带掩蔽器的频谱水平设置为比标准音低35分贝。在这些条件下，该模型无法将响度与强度辨别联系起来。因此，掩蔽器的频谱组成以该模型无法解释的方式影响响度与强度辨别之间的关系。
