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Uncertainty and discrimination

Information theory has been particularly useful in dealing with experiments on absolute judgment. In these experiments, the observed is considered as the communication channel and the question asked is: ``What is the amount of information that the observer can transmit in an absolute-judgment task?'' Or, more specifically, ``What is the channel capacity of the perceiver with respect to the number of items that can be absolutely discriminated?'' Table 1.4 summarizes some of the classical results on the matter.

Table 1.4 : Amount of information in absolute judgements of several stimulus dimensions (taken from [81])

Details of the experiments are explained in [81].

Esprit Project 8579/MIAMI (Schomaker et al., '95)
Thu May 18 16:00:17 MET DST 1995