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Visual attribute modulates the time course of iconic memory decay

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Title
Visual attribute modulates the time course of iconic memory decay
Author(s)
Woojong Yi; Min-suk Kang; Kyoung-Min Lee
Publication Date
2018-04
Journal
Visual Cognition, v.26, no.4, pp.223 - 230
Publisher
Routledge Taylor&Francis Group
Abstract
Studies on iconic memory demonstrate that rich information from a visual scene quickly becomes unavailable with the passage of time. The decay rate of iconic memory refers to the dynamics of memory availability. The present study investigated the iconic memory decay of different stimulus attributes that comprised an object. Specifically, in Experiment 1, participants were presented with eight coloured numbers (e.g., red 4) and required to remember only one attribute, either colour or number, over different blocks of trials. The participants then reported the cued attribute in which the cue Stimulus Onset Asynchrony (SOA) from the memory array onset was varied (0, 100, 200, 300, 500, and 1000 ms). We found that numerical information became unavailable more quickly than colour information, despite the fact that the memory accuracies at 0 and 1000 ms SOAs were comparable between the two attributes. In Experiment 2, we replicated the finding that a numerical representation was lost more quickly than a colour representation when visual masks followed the target stimulus. These results suggest that the various visual attributes comprising an object are lost over time at different rates in iconic memory. We discuss this finding in relation to how perceptual representation is transferred to the capacity-limited visual working memory © 2017 Informa UK Limited, trading as Taylor & Francis Group
URI
https://pr.ibs.re.kr/handle/8788114/5482
ISSN
1350-6285
Appears in Collections:
Center for Neuroscience Imaging Research (뇌과학 이미징 연구단) > Journal Papers (저널논문)
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