Psychology and Neuroscience of Cognition Research Unit.
Department of Psychology.
J Exp Psychol Learn Mem Cogn. 2020 Dec;46(12):2244-2260. doi: 10.1037/xlm0000792. Epub 2019 Nov 21.
The processing of ordinally organized information is a characteristic of both serial-order working memory and numerical cognition. Serial positions of items presented within a list follow an ordinal organization when stored in working memory, whereas numbers are based on an ordinal structure stored in long-term memory. We tested the hypothesis that long-term numerical ordinal representations support the coding of temporary serial position information in working memory. In Experiment 1, learned word-number associations appeared to have a negative instead of a positive impact on immediate serial recall performance relative to control conditions. Experiments 2 showed that this effect was due to a stronger opportunity for learning associations of words to serial positions in the control lists as compared to the experimental lists. Experiment 3 showed that when controlling for these positional learning effects, there was no reliable effect of learned word-number associations on immediate serial recall performance. This study indicates that numerical codes do not play a major role in coding serial position information in working tasks. At the same time, the robust item-position learning effects demonstrate a contribution of long-term item-position associations to immediate memory for order. (PsycInfo Database Record (c) 2021 APA, all rights reserved).
有序信息的处理是序列顺序工作记忆和数字认知的特征。当在工作记忆中存储列表中呈现的项目时，项目的序列位置遵循有序组织，而数字则基于长期记忆中存储的有序结构。我们检验了这样一个假设，即长期的数字顺序表示支持工作记忆中临时序列位置信息的编码。在实验 1 中，与控制条件相比，学习的单词-数字联想似乎对即时序列回忆表现产生了负面影响而不是积极影响。实验 2 表明，这种影响是由于在控制列表中相对于实验列表，单词与序列位置的关联有更多的学习机会。实验 3 表明，当控制这些位置学习效应时，学习的单词-数字联想对即时序列回忆表现没有可靠的影响。这项研究表明，数字代码在工作任务中编码序列位置信息方面不起主要作用。同时，强大的项目-位置学习效应证明了长期项目-位置关联对顺序即时记忆的贡献。（PsycInfo 数据库记录（c）2021 APA，保留所有权利）。
