Central and peripheral components of working memory storage.
Central and peripheral components of working memory storage.
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DOI：
10.1037/a0036814
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发表时间：
2014-10
影响因子：
4.1
通讯作者：
Blume, Christopher L.
中科院分区：
文献类型：
--
作者：
Cowan, Nelson;Saults, J. Scott;Blume, Christopher L.
关键词：
这项研究重新审视了多少工作记忆存储是中央的问题，或跨感官形式和语言和非语言代码共享，有多少是外围的，或特定于一种形式或代码。除了在9个新的双任务实验中探索许多参数和重新分析一些先前的证据之外，与以前的两个刺激集记忆研究相比，本工作的创新之处包括：（1）使用一组原则性公式来估计工作记忆中的项目数量，（2）分离中心成分的模型，根据指令将其分配给非常不同的刺激组，而这些刺激组来自仅用于一种材料的外围组件。我们一直发现，中央的贡献是小于所建议的，而外围的贡献往往是更大的任务时，不需要绑定的功能在一个对象。先前的容量估计与这里观察到的中央加上外围组件的总和一致。我们认为这些数据对工作记忆存储和维持理论的约束。
This study re-examines the issue of how much of working memory storage is central, or shared across sensory modalities and verbal and nonverbal codes, and how much is peripheral, or specific to a modality or code. In addition to the exploration of many parameters in 9 new dual-task experiments and re-analysis of some prior evidence, the innovations of the present work compared to previous studies of memory for two stimulus sets include (1) use of a principled set of formulas to estimate the number of items in working memory, and (2) a model to dissociate central components, which are allocated to very different stimulus sets depending on the instructions, from peripheral components, which are used for only one kind of material. We consistently find that the central contribution is smaller than was suggested by, and that the peripheral contribution is often much larger when the task does not require the binding of features within an object. Previous capacity estimates are consistent with the sum of central plus peripheral components observed here. We consider the implications of the data as constraints on theories of working memory storage and maintenance.
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影响因子：
8.2
作者：
Anderson DE;Vogel EK;Awh E
通讯作者：
Awh E
影响因子：
1.7
作者：
Allen, Richard J.;Hitch, Graham J.;Baddeley, Alan D.
通讯作者：
Baddeley, Alan D.
DOI：
10.1523/jneurosci.4125-10.2011
发表时间：
2011-01-19
期刊：
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子：
--
作者：
Anderson DE;Vogel EK;Awh E
通讯作者：
Awh E
影响因子：
5.4
作者：
Barrouillet, Pierre;Portrat, Sophie;Camos, Valerie
通讯作者：
Camos, Valerie
影响因子：
2
作者：
Alvarez, George A.;Thompson, Todd W.
通讯作者：
Thompson, Todd W.