Reward improves memory through both encoding and consolidation processes. In this preregistered study, we tested whether reward effects on memory generalize from high-rewarded items to low-rewarded but episodically related items. Fifty-nine human volunteers incidentally encoded associations between unique objects and repeated scenes. Some scenes typically yielded high reward, whereas others typically yielded low reward. Memory was tested immediately after encoding (n = 29) or the next day (n = 30). Overall, reward had only a limited influence on memory. It did not enhance consolidation and its effect did not generalize to episodically related stimuli. We thus contribute to understanding the boundary conditions of reward effects on memory.

中文翻译：

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对记忆保留、巩固和泛化的奖励效应？

奖励通过编码和巩固过程提高记忆力。在这项预先注册的研究中，我们测试了奖励对记忆的影响是否从高奖励项目推广到低奖励但与情景相关的项目。五十九名人类志愿者偶然编码了独特物体和重复场景之间的关联。一些场景通常会产生高奖励，而另一些场景通常会产生低奖励。编码后立即（ n = 29）或第二天（n = 30）测试记忆力。总体而言，奖励对记忆的影响有限。它不会增强巩固，其效果也不会推广到情景相关的刺激。因此，我们有助于理解奖励对记忆影响的边界条件。