Author： Grant D.S. Kelly R.
Publisher： Academic Press
ISSN： 0023-9690
Source： Learning and Motivation, Vol.29, Iss.1, 1998-02, pp. : 49-67
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Abstract
Pigeons were trained in a choice matching-to-duration task in which the samples were 2 and 8 s in duration in Experiment 1 and 1 and 30 s in duration in Experiment 2. Following training with variable delays ranging from 1 to 3 s, testing at delays of 2, 15, and 30 s revealed a choose-short effect in both experiments. Both experiments involved a second training phase in which the range of variable delays was extended to 1 to 30 s. A subsequent test, again involving delays of 2, 15, and 30 s, revealed systematic error tendencies (i.e., choose-short and choose-long effects) only in pigeons trained with 1 and 30 s samples. The results are consistent with the view that systematic error tendencies in the matching-to-duration task are mediated by processes of analogical coding and subjective shortening. Copyright 1998 Academic Press.
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