Trial and intertrial durations in pavlovian conditioning: issues of learning and performance

被引:85
作者
Lattal, KM [1 ]
机构
[1] Univ Penn, Dept Biol, Philadelphia, PA 19104 USA
来源
JOURNAL OF EXPERIMENTAL PSYCHOLOGY-ANIMAL BEHAVIOR PROCESSES | 1999年 / 25卷 / 04期
关键词
D O I
10.1037/0097-7403.25.4.433
中图分类号
B84 [心理学];
学科分类号
04 ; 0402 ;
摘要
Four experiments assessed the effects of trial (T) and intertrial (I) durations on magazine approach behavior in rats. In Experiments 1 and 2, different groups of animals were conditioned with various combinations of I and T durations. The rate of acquisition, in terms of the number of trials required to reach various acquisition criteria, generally was faster in groups trained with large I:T ratios. There also were differences in rate of acquisition and terminal response rates between groups trained with identical I:T ratios but with different absolute I and T durations. Differences evident at the end of conditioning persisted during a common test with various combinations of I and T durations. Experiments 3 and 4 provided a more specific test of the predictions of 2 general classes of theories and found results that were consistent with those theories that characterize group differences as indicative of differences in learning, rather than in performance.
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页码:433 / 450
页数:18
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