Temporal constraints on conscious vision: on the ubiquitous nature of the attentional blink.
Temporal constraints on conscious vision: on the ubiquitous nature of the attentional blink.
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DOI：
10.1167/9.9.18
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发表时间：
2009-08
影响因子：
1.8
通讯作者：
M. Nieuwenstein;Erik Van der Burg;J. Theeuwes;B. Wyble;M. Potter
中科院分区：
文献类型：
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作者：
M. Nieuwenstein;Erik Van der Burg;J. Theeuwes;B. Wyble;M. Potter
注意瞬脱（AB）是指观察者经常错过两个掩蔽视觉目标（T1和T2，例如，虽然T1掩模的存在被认为是这种效应所必需的，但是我们最近发现，如果T2非常短暂地显示并且随后是图案掩模（M. R. Nieuwenstein，M. C. Potter，& J. Theeuwes，2009）。使用这样一个敏感的T2任务，本研究试图确定引发AB赤字的最低要求。为此，我们研究了AB的发生是否取决于T1暴露持续时间、执行T1任务的要求以及对T1的认识。结果表明，无论T1的呈现持续时间如何，也无论是否存在T1任务，都会发生AB缺陷。一个边界条件发生的AB被发现在有意识的意识T1。在T1的近阈值检测任务中，当看到T1时，注意力会闪烁，但当T1错过时，注意力不会闪烁。因此，我们得出结论，AB缺陷的最低要求是T1意识。
The attentional blink (AB) refers to the finding that observers often miss the second of two masked visual targets (T1 and T2, e.g., letters) appearing within 200-500 ms. Although the presence of a T1 mask is thought to be required for this effect, we recently found that an AB deficit can be observed even in the absence of a T1 mask if T2 is shown very briefly and followed by a pattern mask (M. R. Nieuwenstein, M. C. Potter, & J. Theeuwes, 2009). Using such a sensitive T2 task, the present study sought to determine the minimum requirements for eliciting an AB deficit. To this end, we examined if the occurrence of an AB depends on T1 exposure duration, the requirement to perform a task for T1, and awareness of T1. The results showed that an AB deficit occurs regardless of the presentation duration of T1, and regardless of whether there is a T1 task. A boundary condition for the occurrence of an AB was found in conscious awareness of T1. With a near-threshold detection task for T1, attention blinked when T1 was seen, but not when T1 was missed. Accordingly, we conclude that the minimum requirement for an AB deficit is T1 awareness.