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The Influence of Visibility of the First Target on the Attentional Blink against the Second Target under the Multiple RSVP

The Korean Journal of Cognitive and Biological Psychology / The Korean Journal of Cognitive and Biological Psychology, (P)1226-9654; (E)2733-466X
2017, v.29 no.4, pp.447-454
https://doi.org/10.22172/cogbio.2017.29.4.007


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Abstract

Attentional blink refers to impaired identification of the second target (T2) displayed within 500ms after the first target (T1) when both the targets are embedded in a single stream of letters under rapid serial visual presentation (RSVP). According to the bottleneck account that the amount of allocated resources prioritized for T1 memory consolidation prevents a conscious report of T2’s identity, the present study examined the influence of T1 visibility on the strength of AB against T2 when both the targets were embedded in multiple RSVP streams where each stream was proceeded at one among four fixed locations. In Experiment 1 and 2, T1 in the high-visibility condition was colored in a pitch-black to create a high contrast target against the gray background whereas T1 in the low-visibility condition was colored in a dim gray for a low contrast one. Specifically in Experiment 2, three randomly-selected distractors in each RSVP frame were replaced with a ‘#’ sign to minimize any distractor interference. The results of both experiments showed that AB in T1 high-visibility condition was less strong than T1 low-visibility condition. These suggest that enhanced T1 visibility reduced the amount of allocated resources for T1 memory consolidation, subsequently leading to allocation of extra processing resources to T2 identification.

keywords
Attentional Blink, Visibility, Contrast, Bottleneck Account, 주의깜박거림, 가시성, 명암대비, 병목모형

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The Korean Journal of Cognitive and Biological Psychology