Second-order backward blocking and unovershadowing in human causal learning

被引：26

作者：

De Houwer, J

Beckers, T

机构：

[1] Univ Ghent, Dept Psychol, B-9000 Ghent, Belgium

[2] Katholieke Univ Leuven, Dept Psychol, Louvain, Belgium

来源：

EXPERIMENTAL PSYCHOLOGY | 2002年 / 49卷 / 01期

关键词：

causal learning; retrospective revaluation; associative learning;

D O I：

10.1027/1618-3169.49.1.27

中图分类号：

B84 [心理学];

学科分类号：

04 ; 0402 ;

摘要：

De Houwer and Beckers (in press Experiment 1) recently demonstrated that ratings about tire relation between a target cue T2 and an outcome are higher when training involves CT1+ and T1T2+ followed by C+ trials than when training involves CT1+ and T1T2+ followed by C-trials. We replicated this study but now explicitly asked participants to rate the causal status of the cues both before and after the C+ or C- teals Results showed that causal ratings for T2 were significantly higher after C+ trials than before C+ 1 trials and that T2 received significantly lower ratings after C- trials than before C- trials. The results thus provide the first evidence for higher-order unovershadowing and higher-order backward blocking. In addition, the ratings for T1 revealed drat first-order backward blocking (i.e., decrease in ratings for T1 as the result of C+ trials) was stronger than first-order unovershadowing,(i.e., increase in ratings for T1 as the result of C- trials).

引用

页码：27 / 33

页数：7

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