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首页> 外文期刊>Memory & cognition >Object-based inhibitory priming in preview search: Evidence from the 'top-up' procedure
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Object-based inhibitory priming in preview search: Evidence from the 'top-up' procedure

机译:预览搜索中基于对象的抑制启动:“充值”过程的证据

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摘要

Visual search in a conjunction task can be facilitated if half the distractor items are previewed prior to the other half of the distractors and the target item. Here, we investigate the nature of this preview by using a top-up procedure, which presents an initial preview followed by a secondary preview after a period of time (the offset period). In Experiment 1, we demonstrate that increasing the time of the offset period decreases search efficiency. If the offset period is increased to 2 sec, the previewed items are searched to a greater extent than when the offset period is 450 msec. This holds even when the old items remain in the same positions across presentations and when they differ in color from new search stimuli. However, when the offset intervals are reduced, the preview can be discounted from search even when the old items change locations between exposures (Experiment 2) and when they are not distinguished from search displays by their color (Experiment 3). The last result occurs only as long as the preview items can be grouped in terms of form. When the preview stimuli are heterogeneous, they are no longer discounted from search if their locations change across the offset period (Experiment 4). We interpret the data in terms of object-based priming, which enables the repeated form of the old distractors to be filtered more easily from search.
机译:如果在分心器和目标项的另一半之前先预览了分心器的一半,则可以促进在合并任务中进行可视搜索。在这里,我们通过使用充值过程来研究此预览的性质,该过程先显示一个初始预览,然后在一段时间(偏移时间)后显示一个辅助预览。在实验1中,我们证明了增加偏移时间的时间会降低搜索效率。如果偏移周期增加到2秒,则与偏移周期为450毫秒时相比,搜索预览项目的范围更大。即使旧项目在演示文稿中保持相同的位置,并且它们的颜色与新搜索刺激的颜色不同时,也是如此。但是,当减少偏移间隔时,即使旧项目在两次曝光之间改变位置(实验2),并且它们的颜色无法与搜索显示区分开(实验3),预览也可以从搜索中删除。仅当可以按形式对预览项目进行分组时,才会出现最后结果。当预览刺激是异类的时,如果它们的位置在偏移期间内发生变化,则不再从搜索中打折它们(实验4)。我们根据基于对象的启动来解释数据,这使得旧干扰项的重复形式可以从搜索中更容易地被过滤掉。

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