Attentional capture by abrupt onsets: New perceptual objects or visual masking?
Attentional capture by abrupt onsets: New perceptual objects or visual masking?
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DOI：
10.1037/0096-1523.22.6.1505
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发表时间：
1996-12-01
影响因子：
2.1
通讯作者：
Jonides, J
中科院分区：
文献类型：
--
作者：
Yantis, S;Jonides, J
作者表明，当一个物体嵌入到一系列物体中而没有突然出现（称为无出现刺激）时，在视觉搜索中可以有效地检测到突然出现在先前空白位置的物体。在这些实验中，非起始刺激早在起始刺激出现之前就出现了，但被额外的线段掩盖，导致刺激无法识别。 B. S. Gibson (1996) 声称，由于前向掩蔽，非起始刺激的可用性相对于突然起始刺激的可用性被延迟。作者表明，前向掩蔽不太可能成为他们实验中的重要因素，并且据报道，有 3 个新实验破坏了吉布森的掩蔽解释。在视觉搜索中处理起始刺激和非起始刺激的效率上观察到的差异是由于新感知对象的注意力捕获以及更新现有对象表示的过程相对缓慢所致。
The authors have shown that an object appearing abruptly in a previously blank location is efficiently detected in visual search when it is embedded in an array of objects without abrupt onset (termed no-onset stimuli). In these experiments, no-onset stimuli appeared well before the onset stimulus but were camouflaged by additional line segments rendering the stimuli unidentifiable. B. S. Gibson (1996) claims that the availability of the no-onset stimuli was delayed relative to that of the abrupt onset stimulus because of forward masking. The authors show that forward masking is unlikely to be a significant factor in their experiments, and 3 new experiments are reported that undermine Gibson's masking account. Observed differences in the efficiency with which onset and no-onset stimuli are processed in visual search are due to attentional capture by new perceptual objects and to a relatively sluggish process of updating existing object representations.