Department of Psychology, University of Georgia, Athens, GA, USA.
J Exp Psychol Learn Mem Cogn. 2010 Jan;36(1):240-7. doi: 10.1037/a0017739.
The present study tested the dual-component model of working memory capacity (WMC) by examining estimates of primary memory and secondary memory from an immediate free recall task. Participants completed multiple measures of WMC and general intellectual ability as well as multiple trials of an immediate free recall task. It was demonstrated that there are 2 sources of variance (primary memory and secondary memory) in immediate free recall and that, further, these 2 sources of variance accounted for independent variation in WMC. Together, these results are consistent with a dual-component model of WMC reflecting individual differences in maintenance in primary memory and in retrieval from secondary memory. Theoretical implications for working memory and dual-component models of free recall are discussed. (PsycINFO Database Record (c) 2009 APA, all rights reserved).
本研究通过考察即时自由回忆任务中的主存储器和辅助存储器的估计值来检验工作记忆容量（WMC）的双成分模型。参与者完成了多项 WMC 和一般智力能力的测量，以及多次即时自由回忆任务的试验。结果表明，即时自由回忆中有 2 个方差源（主存储器和辅助存储器），并且这 2 个方差源可以解释 WMC 的独立变化。这些结果共同表明，WMC 的双成分模型反映了个体在主存储器中的保持能力以及从辅助存储器中检索的差异。文中讨论了工作记忆和自由回忆的双成分模型的理论意义。（APA 版权所有，2009）
