Two tests of the stuck-in-time hypothesis.
The authors report 2 experiments that test the stuck-in-time hypothesis, which argues that animals cannot time-date events and thus do not remember when events occurred and do not anticipate future events. In Experiment 1, rats in the experimental condition could earn a large reward by reentering the 1st arm that they visited on a radial maze. They did not learn to reenter this arm early and did no better than did a control group that was not given a large reward for reentering the first arm. In Experiment 2, rats in the experimental group could earn a large reward by delaying entry into a distinctive arm. These rats did not learn to delay entry into the distinctive arm, and they performed no better than did the control-group rats, which did not receive a large reward for delayed entry. These experiments provide further evidence in support of the stuck-in-time hypothesis.
Roberts
William A
WA
Department of Psychology, University of Western Ontario, London, Canada. roberts@uwo.ca
Roberts
Shelley
S
D000818:Animals; D001522:Behavior, Animal; D008297:Male; D018782:Maze Learning; D008568:Memory; D051381:Rats; D020318:Rats, Long-Evans; D013998:Time Perception