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Title: Location-Unbound Color-Shape Binding Representations in Visual Working Memory.
Authors: Saiki, Jun  kyouindb  KAKEN_id
Author's alias: 齋木, 潤
Keywords: visual working memory
feature binding
object file
redundancy gain
event-related potential
Issue Date: 9-Feb-2016
Publisher: SAGE Publications
Journal title: Psychological science
Volume: 27
Issue: 2
Start page: 178
End page: 190
Abstract: The mechanism by which nonspatial features, such as color and shape, are bound in visual working memory, and the role of those features' location in their binding, remains unknown. In the current study, I modified a redundancy-gain paradigm to investigate these issues. A set of features was presented in a two-object memory display, followed by a single object probe. Participants judged whether the probe contained any features of the memory display, regardless of its location. Response time distributions revealed feature coactivation only when both features of a single object in the memory display appeared together in the probe, regardless of the response time benefit from the probe and memory objects sharing the same location. This finding suggests that a shared location is necessary in the formation of bound representations but unnecessary in their maintenance. Electroencephalography data showed that amplitude modulations reflecting location-unbound feature coactivation were different from those reflecting the location-sharing benefit, consistent with the behavioral finding that feature-location binding is unnecessary in the maintenance of color-shape binding.
Description: 視覚認知において色と形の情報が統合される仕組み -位置に依存しない物体記憶の生成-. 京都大学プレスリリース. 2016-01-04.
Rights: The final, definitive version of this paper has been published in 'Psychological science', February 2016, vol. 27, no. 2, 178-190, as doi:10.1177/0956797615616797 by SAGE Publications Ltd, All rights reserved. © The Author(s) 2015.
This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。
URI: http://hdl.handle.net/2433/202916
DOI(Published Version): 10.1177/0956797615616797
PubMed ID: 26710821
Related Link: http://www.kyoto-u.ac.jp/ja/research/research_results/2015/151229_1.html
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