Working memory and focal attention
Working memory and focal attention
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DOI：
10.1037/0278-7393.27.3.817
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发表时间：
2001-05-01
影响因子：
2.6
通讯作者：
McElree, B
中科院分区：
文献类型：
--
作者：
McElree, B
检索速度的测量表明，工作记忆中只有一小部分表征属于注意力的焦点。福尔斯。一个n-back任务，这需要跟踪项目1，2，或3回顺序呈现的列表中，被用来检查最近的事件的表示和检索，以及如何控制过程可以用来保持一个项目的焦点注意，同时处理新的信息。一个速度-准确性权衡过程被用来获得的可用性和速度，最近的事件可以访问的措施。结果收敛与其他时间过程的研究表明，注意力可以同时分配到只有少数的记忆表征，也许只有1个项目。检索速度的措施进一步表明，订单信息检索时，一个缓慢的搜索过程中，一个项目是不是保持在焦点注意。
Measures of retrieval speed indicated that only a small subset of representations in working memory falls within the focus of attention. An n-back task, which required tracking an item 1, 2, or 3 back in a sequentially presented list, was used to examine the representation and retrieval of recent events and how control processes can be used to maintain an item in focal attention while concurrently processing new information. A speed-accuracy trade-off procedure was used to derive measures of the availability and the speed with which recent events can be accessed. Results converge with other time course studies in demonstrating that attention can be concurrently allocated only to a small number of memory representations, perhaps just 1 item. Measures of retrieval speed further demonstrate that order information is retrieved by a slow search process when an item is not maintained within focal attention.