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Gilkey and Robinson [J. Acoust. Soc. Am. 79, 1499–1510 (1986)] modeled subject responses to individual reproducible noise samples, randomly selected on each trial from a set of 25, in a diotic tone‐in‐noise detection task. They found that a detector composed of a 50‐Hz‐wide single‐tuned filter centered at the 500‐Hz signal frequency, a nonlinearity, and an integrator with a 100‐ to 200‐ms decay constant predicted the data relatively well. Here, a set of 150 noise samples was used, and a more detailed analysis of the parameter space of the detector was performed. The results of this study are similar to their results, although the bandwidths of the filters are smaller (26–49 Hz) and the decay constants are shorter (39–100 ms). “Spectral weighting functions” were derived from linear combinations of the outputs of seven detectors, each at a different center frequency. These functions are more consistent than those of Gilkey and Robinson and also indicate that subjects compare information across frequency reg... |
