Immediacy Versus Anticipated Delay in the Time-Left Experiment: A Test of the Cognitive Hypothesis.
Authors:
- D. T. CeruttiDCD. T. Cerutti
- J. E. R. StaddonJSJ. E. R. Staddon
- 1 January 2004
- journal article
- Published by American Psychological Association (APA) in Journal of Experimental Psychology: Animal Behavior Processes
- Vol. 30 (1) , 45-57
Abstract
In the time-left experiment (J. Gibbon & R. M. Church, 1981), animals are said to compare an expectation of a fixed delay to food, for one choice, with a decreasing delay expectation for the other, mentally representing both upcoming time to food and the difference between current time and upcoming time (the cognitive hypothesis). The results of 2 experiments support a simpler view: that animals choose according to the immediacies of reinforcement for each response at a time signaled by available time markers (the temporal control hypothesis). It is not necessary to assume that animals can either represent or subtract representations of times to food to explain the results of the time-left experiment.Keywords
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