Why is Information Displaced from Visual Working Memory during Visual Search?
Why is Information Displaced from Visual Working Memory during Visual Search?
复制标题
为什么在视觉搜索过程中信息会从视觉工作记忆中消失？
DOI：
10.1080/13506280902734326
复制
发表时间：
2010
期刊：
影响因子：
2
通讯作者：
Luck,StevenJ
中科院分区：
文献类型：
--
作者：
Woodman,GeoffreyF;Luck,StevenJ
Research has shown that performing visual search while maintaining representations in visual working memory displaces up to one object's worth of information from memory. This memory displacement has previously been attributed to a nonspecific disruption of the memory representation by the mere presentation of the visual search array, and the goal of the present study was to determine whether it instead reflects the use of visual working memory in the actual search process. The first hypothesis tested was that working memory displacement occurs because observers preemptively discard about an object's worth of information from visual working memory in anticipation of performing visual search. Second, we tested the hypothesis that on target absent trials no information is displaced from visual working memory because no target is entered into memory when search is completed. Finally, we tested whether visual working memory displacement is due to the need to select a response to the search array. The findings rule out these alternative explanations. The present study supports the hypothesis that change-detection performance is impaired when a search array appears during the retention interval due to nonspecific disruption or masking.
