Access to information in working memory: Exploring the focus of attention
Access to information in working memory: Exploring the focus of attention
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DOI：
10.1037//0278-7393.28.3.411
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发表时间：
2002-05-01
影响因子：
2.6
通讯作者：
Oberauer, K
中科院分区：
文献类型：
--
作者：
Oberauer, K
参与者记住简要介绍的数字集，其中一个子集必须作为算术任务的输入（主动集），而另一个子集必须独立于并行任务（被动集）。算术运算的延迟是主动集合而非被动集合的集合大小的函数。当连续的操作应用于活动集合内的不同数字时，观察到对象切换成本。参与者需要2秒的编码被动设置，使其不影响加工延迟（实验2）。这一结果支持了区分工作记忆3种表征状态的模型：长时记忆的激活部分、直接访问的容量受限区域和注意焦点。
Participants memorized briefly presented sets of digits, a subset of which had to be accessed as input for arithmetic tasks (the active set), whereas another subset had to be remembered independently of the concurrent task (the passive set). Latencies for arithmetic operations were a function of the setsize of active but not passive sets. Object-switch costs were observed when successive operations were applied to different digits within an active set. Participants took 2 s to encode a passive set so that it did not affect processing latencies (Experiment 2). The results support a model distinguishing 3 states of representations in working memory: the activated part of long-term memory, a capacity limited region of direct access, and a focus of attention.