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ISSN : 1226-9654

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Vol.24 No.3
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The Effects of Task-irrelevant Color Uniformity in Attentional Blink

The Korean Journal of Cognitive and Biological Psychology / The Korean Journal of Cognitive and Biological Psychology, (P)1226-9654; (E)2733-466X
2012, v.24 no.3, pp.281-293
https://doi.org/10.22172/cogbio.2012.24.3.005


& (2012). The Effects of Task-irrelevant Color Uniformity in Attentional Blink. The Korean Journal of Cognitive and Biological Psychology, 24(3), 281-293, https://doi.org/10.22172/cogbio.2012.24.3.005
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Abstract

In searching for targets among a rapidly presented stream of distractors, correct identification for the first target impairs the detection of the following one appearing within a half second after the first one appeared: the attentional blink (AB). Di Lollo and his colleagues (2005) proposed that temporary loss of control of the exogenously-triggered input filter explained the AB: They showed that AB was apparent when a nontarget category item was put in the target string, but diminished when the target string consisted of the same category items. We examined whether the AB effect is also affected by disrupting the uniformity of the online-established, task-irrelevant dimension. In the current study, we manipulated the uniformity of the task-relevant, target-defining dimension (category), following the previous study by Di Lollo et al. as well as the uniformity of the instantly obtained, task-irrelevant dimension (color). The results showed that both task-relevant and task-irrelevant uniformity modulated the AB effects. However, the results also showed that task-relevant category uniformity majorly determined the AB effects and task-irrelevant color uniformity was not able to reduce AB when category uniformity was disrupted.

keywords
attentional blink (AB), temporal visual process, category uniformity, perceptual uniformity, task-irrelevancy, 순간적 주의 상실, 시간적 시각 처리, 범주 일률성, 색 일률성, 과제 무관성

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