Developmental increase in working memory span: Resource sharing or temporal decay?
Developmental increase in working memory span: Resource sharing or temporal decay?
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DOI：
10.1006/jmla.2001.2767
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发表时间：
2001-07-01
影响因子：
4.3
通讯作者：
Camos, V
中科院分区：
文献类型：
--
作者：
Barrouillet, P;Camos, V
工作记忆广度任务要求参与者在执行一些并发处理的同时在短期记忆中保持项目（例如，阅读、计数和解决问题）。有人认为，这些任务的困难，结果要么从共享有限的资源池之间的必要性处理和存储（凯斯的认知空间假说）或从事实上，记忆痕迹遭受时间衰减，而并发任务正在执行（Towse和Hitch的记忆衰退假说）。我们通过比较儿童在任务中的表现来验证这两个假设，在这些任务中，处理组件总是具有相同的持续时间，但认知成本不同（计数或解决问题与重复说“巴巴”）。结果表明，时间和资源的限制都限制了工作记忆任务的执行。我们讨论了它们对当前工作记忆模型的影响。(C)北京：科学出版社.
Working memory span tasks require participants to maintain items in short-term memory while performing some concurrent processing (e.g., reading, counting, and problem solving). It has been suggested that the difficulty of these tasks results either from the necessity of sharing a limited resource pool between processing and storage (Case's cognitive space hypothesis) or from the Fact that the memory traces suffer from a temporal decay while the concurrent task is being performed (Towse and Hitch`s memory decay hypothesis). We tested these two hypotheses by comparing children's performance in tasks in which the processing component always had the same duration but varied in cognitive cost (counting or problem solving vs repeatedly saying "baba"). The results indicate that both time and limitation of resources constrain performance in working memory tasks. We discuss their implications regarding current models of working memory. (C) 2001 Academic Press.