Miller Leonie M, Roodenrys Steven
University of Wollongong, Wollongong, New South Wales, Australia.
Mem Cognit. 2009 Sep;37(6):850-65. doi: 10.3758/MC.37.6.850.
Word frequency and word concreteness are language attributes that have been shown to independently influence the recall of items in verbal short-term memory (STM). It has been argued that such effects are evidence for the action of long-term memory knowledge on STM traces. However, research to date has not investigated whether these variables interact in serial recall. In two experiments, we examined the behavior of these variables under factorial manipulation and demonstrated that the effect of word frequency is dependent on the level of concreteness of items. Serial recall performance is examined with reference to two explanatory approaches: Walker and Hulme's (1999) dual-redintegration account and language-based models of STM. The data indicate that language-based models are more compatible with the observed effects and challenge the view that frequency and concreteness effects in STM are the products of distinct mechanisms.
词频和词的具体性是语言属性，已被证明会独立影响言语短期记忆（STM）中项目的回忆。有人认为，这种效应是长期记忆知识对STM痕迹起作用的证据。然而，迄今为止的研究尚未调查这些变量在系列回忆中是否相互作用。在两项实验中，我们在析因操纵下研究了这些变量的行为，并证明词频效应取决于项目的具体性水平。我们参照两种解释方法来检验系列回忆表现：沃克和休姆（1999年）的双重再整合理论以及基于语言的STM模型。数据表明，基于语言的模型与观察到的效应更相符，并对STM中的频率和具体性效应是不同机制产物的观点提出了挑战。
