摘要：To examine the possibility that position cues are temporal andtherefore ineffective early in serial runway training, rats were runwaytrained on a three-trial series of different rewards. The series wasSNP', where Sand P' refer to series trials that concluded with foursucrose or eight plain Noyes pellets, respectively. The middle trialwas never rewarded (N). Early in training, a significant pattern ofrunning slowly on the middle trial and rapidly on the initial andterminal trials had emerged. Transfer tests to series of trials (NNN)never rewarded after this limited training (on Day 19) and later afterextended training (Day 39), each gave evidence that the rats reliedupon position cues in the tests. The three-trial patterns establishedbefore the tests were retained on the three trials of the NNN series.The results suggest the prevalence of position learning, but they workagainst the idea that position cues are temporal and effective onlywith extended training.
