Three experiments with rats assessed the effects of introducing predictive ambiguity by reversing a Pavlovianly trained discrimination on subsequent context and temporal conditioning. The experience of discrimination reversal did not facilitate context conditioning when the food was presented on a variable time schedule (Experiment 1a). However, in Experiment 1b, discrimination reversal enhanced subsequent learning of a fixed temporal interval associated with unsignaled food presentation in comparison with consistent training. In Experiment 2, temporal discrimination after reversal and consistent training was compared with a naïve control. The experience of discrimination facilitated subsequent temporal conditioning with respect to the naïve control, and discrimination reversal enhanced temporal conditioning even further. In Experiment 3, reversal enhanced learning of the fixed temporal interval, regardless of whether it was relatively short or long (i.e., 30 s or 60 s). Results are discussed in terms of current associative theories of human and nonhuman conditioning and attention. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

中文翻译：

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歧视逆转促进了大鼠食性条件下时间歧视的获得。

进行了三项大鼠实验，通过逆转巴甫洛夫式训练的对随后情景和时间条件的歧视，评估了引入预测歧义的效果。当以可变的时间表提供食物时，歧视逆转的经验不利于环境的调节（实验1a）。但是，在实验1b中，与一致的训练相比，歧视的逆转增强了与无信号的食物展示相关的固定时间间隔的后续学习。在实验2中，将逆转和持续训练后的时间歧视与单纯的对照进行了比较。辨别的经验促进了针对天真的控制的后续时间调节，而辨别逆转则进一步增强了时间调节。在实验3中，无论是相对较短还是较长（即30 s或60 s），反向学习都可以增强固定时间间隔的学习。根据人类和非人类调节与注意的当前关联理论讨论了结果。（PsycINFO数据库记录（c）2019 APA，保留所有权利）。