Rapid attentional selection processes operate independently and in parallel for multiple targets
Rapid attentional selection processes operate independently and in parallel for multiple targets
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DOI：
10.1016/j.biopsycho.2016.10.012
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发表时间：
2016-12-01
影响因子：
2.6
通讯作者：
Eimer, Martin
中科院分区：
文献类型：
--
作者：
Grubert, Anna;Eimer, Martin
多个对象是串行选择还是并行选择的问题仍然存在争议。先前的研究采用N2pc成分作为注意选择的标记，表明多个选择过程可以同时被激活。本研究表明，多个目标的并发选择反映了真正的并行处理，而不受是否或何时同时引发另一个目标的额外选择过程的影响。实验1表明，在选择颜色定义的目标时触发的N2pc成分不受出现在近距离的第二个目标的存在或不存在的调节。实验2表明，无论两个目标是同时出现还是连续出现，都会引起相同的快速平行选择过程。结果表明，在刺激开始后的前200ms内，对视野内的多个物体可并行触发快速注意选择过程。(C) 2016 Elsevier B.V.版权所有
The question whether multiple objects are selected serially or in parallel remains contentious. Previous studies employed the N2pc component as a marker of attentional selection to show that multiple selection processes can be activated concurrently. The present study demonstrates that the concurrent selection of multiple targets reflects genuinely parallel processing that is unaffected by whether or when an additional selection process is elicited simultaneously for another target. Experiment 1 showed that N2pc components triggered during the selection of a colour-defined target were not modulated by the presence versus absence of a second target that appeared in close temporal proximity. Experiment 2 revealed that the same rapid parallel selection processes were elicited regardless of whether two targets appeared simultaneously or in two successive displays. Results show that rapid attentional selection processes within the first 200ms after stimulus onset can be triggered in parallel for multiple objects in the visual field. (C) 2016 Elsevier B.V. All rights reserved.