Detection of Signals of Uncertain Frequency

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Abstract
Theoretical models for frequency sensitivity in human observers are discussed. One decision procedure for a multiple‐filter model is considered in some detail as a general model for decision situations in which each available response is tied to more than one of the possible signal alternatives. Two experiments were conducted in an attempt to choose between a sweeping‐filter model and a multiple‐filter model. Detection in a two‐alternative forced‐choice experiment in which the signal could be one of two possible signals was measured over a range of frequency separations. The data yield further support for a multiple‐filter model.

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