Voluntary triggering of the first target attenuates the attentional blink
Voluntary triggering of the first target attenuates the attentional blink
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DOI：
10.3758/s13414-011-0233-4
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发表时间：
2012-02-01
影响因子：
1.7
通讯作者：
Kawahara, Jun I.
中科院分区：
文献类型：
--
作者：
Kihara, Ken;Kawahara, Jun I.
注意瞬脱（attentional blink，AB）指的是在快速连续的非目标中，两个目标之间的间隔小于500 ms，无法识别出第二个目标。为了研究第一个目标的出现的预期是否会影响AB，我们比较了当参与者触发第一个目标的出现时和当目标在某个时间点自动呈现时AB赤字的大小，就像传统的AB研究一样。在实验1中，第一个目标出现后，立即参与者的自愿按键，揭示了识别第一个目标的准确性增加，AB赤字减弱。在实验2中，一个自愿的按键和第一个目标呈现之间的时间延迟被操纵。结果表明，只有当第一个目标在动作后300 ms内出现时，两个目标才能准确地报告。在实验3中，我们排除了另一种解释，即将促进效应归因于单纯的身体运动，通过检查目标识别的准确性，当参与者自愿按下一个键，但该动作与第一个目标的开始无关。两者合计，结果表明，自愿行动，以触发视觉目标的发病促进处理和减少随后的AB赤字时，目标出现在300毫秒的行动。
The term attentional blink (AB) refers to a failure in identifying the second of two targets, separated by less than 500 ms, embedded in a rapid succession of nontargets. To examine whether the expectation of the onset of the first target affects the AB, we compared the magnitudes of the AB deficit when participants triggered the appearance of the first target and when the target was presented automatically at some time point, as in traditional AB studies. In Experiment 1, the first target appeared immediately after a participant's voluntary keypress, revealing that the accuracy for identifying the first target increased and that the AB deficit was attenuated. In Experiment 2, the temporal delay between a voluntary keypress and the first-target presentation was manipulated. The results showed that both targets could be reported accurately only when the first target was presented within 300 ms after the action. In Experiment 3, we ruled out an alternative explanation that would attribute the facilitation effect to mere physical movement, by examining the accuracy of target identification when participants voluntarily pressed a key but that action was unrelated to the onset of the first target. Taken together, the results suggest that voluntary action to trigger the onset of a visual target facilitates processing and reduces the subsequent AB deficit when the target appears within 300 ms of the action.