The dynamics of prior entry in serial visual processing
The dynamics of prior entry in serial visual processing
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DOI：
10.1080/13506285.2011.631507
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发表时间：
2012-01-01
期刊：
影响因子：
2
通讯作者：
Olivers, Christian N. L.
中科院分区：
文献类型：
--
作者：
Hilkenmeier, Frederic;Scharlau, Ingrid;Olivers, Christian N. L.
一个被关注的刺激减少了在同一位置的后一个刺激的感知延迟，导致了一个有趣的发现，即两者之间的感知顺序往往是颠倒的。这种进入前效应已在许多不同的提示范式中得到证实，主要涉及空间注意力转移。在这里，我们评估的时间过程中，所有的刺激出现在快速串行介绍在一个位置之前进入。我们的研究结果表明，注意增强的大小强烈影响的刺激开始之间的线索和目标，具有快速的早期峰值，然后衰减。当任务无关的线索被使用时，提示效果是短暂的，早在50毫秒的峰值。当任务相关的线索被采用时，好处延伸到约100毫秒。这些结果与瞬时注意力增强的直接计算模型相吻合，在刺激检测后约80-100 ms达到峰值。
An attended stimulus reduces the perceptual latency of a later stimulus at the same location, leading to the intriguing finding that the perceived order between the two is often reversed. This prior-entry effect has been well established in a number of different cueing paradigms, mostly involving spatial attentional shifts. Here we assess the time-course of prior entry when all stimuli appear in rapid serial presentation at one location. Our findings indicate that the size of the attentional enhancement is strongly affected by the stimulus onset asynchrony between cue and target, with a rapid early peak, followed by decay. When task-irrelevant cues are used, the cueing effect on prior entry is short-lived and peaks as early as 50 ms. The benefit extends to about 100 ms when task-relevant cues are employed. These results fit with a straightforward computational model of transient attentional enhancement, peaking about 80-100 ms after stimulus detection.