Yin Xiaotong, Havelka Jelena, Allen Richard J
School of Psychology, University of Leeds, Leeds, UK.
Memory. 2024 Oct;32(9):1158-1172. doi: 10.1080/09658211.2024.2389177. Epub 2024 Aug 8.
Selectively remembering more valuable information can improve memory efficiency. Such value effects have been observed on long-term memory for item-colour binding, but the possible contributory factors are unclear. The current study explored contributions from attention (Experiment 1) and verbal rehearsal (Experiment 2). Across two experiments, memory was superior for item-colour bindings that were associated with high (relative to low) point values at encoding, both in an immediate test and a delayed re-test. When availability of attentional resources was reduced during encoding, value only influenced immediate and not delayed memory (Experiment 1). This indicates that a transient value effect can be obtained with little attentional resources, but attentional resources are involved in creating a longer lasting effect. When articulatory suppression was implemented during encoding (Experiment 2), value effects were somewhat reduced in the immediate test and abolished in the delayed re-test, suggesting a role for verbal rehearsal in value effects on item-colour binding memory. These patterns of value effects did not interact with encoding presentation format (i.e., sequential vs. simultaneous presentation of objects). Together, these results suggest that attentional resources and verbal rehearsal both contribute to value effects on item-colour binding memory, with varying impacts on the durability of these effects.
选择性地记住更有价值的信息可以提高记忆效率。这种价值效应在项目-颜色绑定的长期记忆中已被观察到，但可能的促成因素尚不清楚。当前的研究探讨了注意力（实验1）和言语复述（实验2）的作用。在两个实验中，无论是在即时测试还是延迟重新测试中，对于在编码时与高（相对于低）分值相关联的项目-颜色绑定，记忆表现更优。当编码过程中注意力资源的可用性降低时，价值仅影响即时记忆而非延迟记忆（实验1）。这表明只需很少的注意力资源就能获得短暂的价值效应，但注意力资源参与了产生更持久的效应。当在编码过程中实施发音抑制（实验2）时，价值效应在即时测试中有所降低，在延迟重新测试中则消失，这表明言语复述在项目-颜色绑定记忆的价值效应中发挥了作用。这些价值效应模式与编码呈现格式（即物体的顺序呈现与同时呈现）没有相互作用。总之，这些结果表明注意力资源和言语复述都对项目-颜色绑定记忆的价值效应有贡献，且对这些效应的持续性有不同影响。
