Low working memory capacity impedes both efficiency and learning of number transcoding in children
Low working memory capacity impedes both efficiency and learning of number transcoding in children
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DOI：
10.1016/j.jecp.2007.06.006
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发表时间：
2008-01-01
影响因子：
2.6
通讯作者：
Camos, Valerie
中科院分区：
文献类型：
--
作者：
Camos, Valerie
本研究旨在探讨工作记忆容量的个体差异对数字转码的影响。最近提出的一个模型，ADAPT（一种发展性无语义程序转码模型），通过两种机制来解释数字从口头形式转码到阿拉伯形式的发展：学习新的产生规则，扩大儿童可以转码的数字范围和增加心理词汇。研究人员对7岁儿童的工作记忆能力以及他们将一位数转换为四位数的能力进行了评估。正如ADAPT预测的那样，当需要更多的生产规则和儿童的工作记忆容量较低时，转码错误率会增加，这两个因素相互作用。此外，对高跨和低跨儿童产生的错误进行定性分析表明，后者在产生规则习得方面存在发育延迟。(c) 2007爱思唯尔公司版权所有。
This study aimed to evaluate the impact of individual differences in working memory capacity on number transcoding. A recently proposed model, ADAPT (a developmental asemantic procedural transcoding model), accounts for the development of number transcoding from verbal form to Arabic form by two mechanisms: the learning of new production rules that enlarge the range of numbers a child can transcode and the increase of the mental lexicon. The working memory capacity of 7-year-olds was evaluated along with their ability to transcode one- to four-digit numbers. As ADAPT predicts, the rate of transcoding errors increased when more production rules were required and when children had low working memory capacity, with these two factors interacting. Moreover, qualitative analysis of the errors produced by high- and low-span children showed that the latter have a developmental delay in the acquisition of the production rules. (c) 2007 Elsevier Inc. All rights reserved.