Department of Psychology, University of Amsterdam, Amsterdam, the Netherlands ; Amsterdam Brain and Cognition, University of Amsterdam, Amsterdam, the Netherlands.
Department of Psychology, University of Amsterdam, Amsterdam, the Netherlands.
PLoS One. 2014 Feb 3;9(2):e88307. doi: 10.1371/journal.pone.0088307. eCollection 2014.
Contextual cues are known to benefit memory retrieval, but whether and how sleep affects this context effect remains unresolved. We manipulated contextual congruence during memory retrieval in human volunteers across 12 h and 24 h intervals beginning with either sleep or wakefulness. Our data suggest that whereas contextual cues lose their potency with time, sleep does not modulate this process. Furthermore, our results are consistent with the idea that sleep's beneficial effect on memory retention depends on the amount of waking time that has passed between encoding and sleep onset. The findings are discussed in the framework of competitive consolidation theory.
语境线索已知有利于记忆检索，但睡眠是否以及如何影响这种语境效应仍未解决。我们在人类志愿者中，在开始睡眠或清醒后的 12 小时和 24 小时间隔内，在记忆检索过程中操纵上下文一致性。我们的数据表明，尽管随着时间的推移，语境线索的效力会减弱，但睡眠并不会调节这一过程。此外，我们的结果与以下观点一致，即睡眠对记忆保持的有益影响取决于编码和睡眠开始之间清醒时间的长短。研究结果在竞争巩固理论的框架内进行了讨论。
