Livesey Evan J, Don Hilary J, Uengoer Metin, Thorwart Anna
School of Psychology, The University of Sydney.
Department of Psychology, Philipps-Universität Marburg.
J Exp Psychol Anim Learn Cogn. 2019 Apr;45(2):125-142. doi: 10.1037/xan0000197. Epub 2019 Feb 28.
A wealth of recent studies have demonstrated that predictive cues involved in a linearly solvable component discrimination gain associability in subsequent learning relative to nonpredictive cues. In contrast, contradictory findings have been reported about the fate of cues involved in learning biconditional discriminations in which the cues are relevant but none are individually predictive of a specific outcome. In 3 experiments we examined the transfer of learning from component and biconditional discriminations in a within-subjects design. The results show a greater benefit in associability for cues that had previously served as predictive cues in a component discrimination than cues previously used in a biconditional discrimination. Further, new biconditional discriminations were learned faster when they were composed of cues that were previously trained in separate biconditional discriminations. Similarly, new component discriminations were learned faster when they were composed of cues that were previously trained in a separate component discriminations irrespective of whether they were previously predictive or previously nonpredictive. These results provide novel evidence that cue-specific learning of relational structure affects subsequent learning, suggesting changes in cue processing that go beyond simple changes in cue associability based on learned predictiveness. (PsycINFO Database Record (c) 2019 APA, all rights reserved).
近期大量研究表明,与非预测性线索相比,线性可解成分辨别中涉及的预测性线索在后续学习中获得了更强的联想性。相比之下,关于双条件辨别中所涉及线索的结果却出现了矛盾的报道,在双条件辨别中,线索虽相关,但没有一个能单独预测特定结果。在3个实验中,我们采用被试内设计,研究了成分辨别和双条件辨别之间学习的迁移情况。结果显示,在成分辨别中曾作为预测性线索的那些线索,比在双条件辨别中使用过的线索,在联想性方面受益更多。此外,当新的双条件辨别由之前在不同双条件辨别中受过训练的线索组成时,学习速度更快。同样,当新的成分辨别由之前在不同成分辨别中受过训练的线索组成时,无论这些线索之前是预测性的还是非预测性的,学习速度都会更快。这些结果提供了新的证据,表明线索关系结构的特定学习会影响后续学习,这意味着线索加工的变化不仅仅是基于所学预测性的线索联想性的简单变化。(《心理学文摘数据库记录》(c)2019美国心理学会,保留所有权利)