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Interval between two sequential arrays determines their storage state in visual working memory

The visual information can be stored as either “active” representations in the active state or “activity-silent” representations in the passive state during the retention period in visual working memory (VWM). Catering to the dynamic nature of visual world, we explored how the temporally dynamic vis...

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Autores principales: Li, Ziyuan, Zhang, Jiafeng, Liang, Tengfei, Ye, Chaoxiong, Liu, Qiang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7206098/
https://www.ncbi.nlm.nih.gov/pubmed/32382102
http://dx.doi.org/10.1038/s41598-020-64825-4
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author Li, Ziyuan
Zhang, Jiafeng
Liang, Tengfei
Ye, Chaoxiong
Liu, Qiang
author_facet Li, Ziyuan
Zhang, Jiafeng
Liang, Tengfei
Ye, Chaoxiong
Liu, Qiang
author_sort Li, Ziyuan
collection PubMed
description The visual information can be stored as either “active” representations in the active state or “activity-silent” representations in the passive state during the retention period in visual working memory (VWM). Catering to the dynamic nature of visual world, we explored how the temporally dynamic visual input was stored in VWM. In the current study, the memory arrays were presented sequentially, and the contralateral delay activity (CDA), an electrophysiological measure, was used to identify whether the memory representations were transferred into the passive state. Participants were instructed to encode two sequential arrays and retrieve them respectively, with two conditions of interval across the two arrays: 400 ms and 800 ms. These results provided strong evidence for the state-separated storage of two sequential arrays in different neural states if the interval between them was long enough, and the concurrent storage of them in the active state if the interval was relatively short. This conclusion was valid only when the participants encountered the task for the first time. Once participants have formed their mindset, they would apply the same storage mode to the subsequently extended or shortened interval condition.
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spelling pubmed-72060982020-05-15 Interval between two sequential arrays determines their storage state in visual working memory Li, Ziyuan Zhang, Jiafeng Liang, Tengfei Ye, Chaoxiong Liu, Qiang Sci Rep Article The visual information can be stored as either “active” representations in the active state or “activity-silent” representations in the passive state during the retention period in visual working memory (VWM). Catering to the dynamic nature of visual world, we explored how the temporally dynamic visual input was stored in VWM. In the current study, the memory arrays were presented sequentially, and the contralateral delay activity (CDA), an electrophysiological measure, was used to identify whether the memory representations were transferred into the passive state. Participants were instructed to encode two sequential arrays and retrieve them respectively, with two conditions of interval across the two arrays: 400 ms and 800 ms. These results provided strong evidence for the state-separated storage of two sequential arrays in different neural states if the interval between them was long enough, and the concurrent storage of them in the active state if the interval was relatively short. This conclusion was valid only when the participants encountered the task for the first time. Once participants have formed their mindset, they would apply the same storage mode to the subsequently extended or shortened interval condition. Nature Publishing Group UK 2020-05-07 /pmc/articles/PMC7206098/ /pubmed/32382102 http://dx.doi.org/10.1038/s41598-020-64825-4 Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Li, Ziyuan
Zhang, Jiafeng
Liang, Tengfei
Ye, Chaoxiong
Liu, Qiang
Interval between two sequential arrays determines their storage state in visual working memory
title Interval between two sequential arrays determines their storage state in visual working memory
title_full Interval between two sequential arrays determines their storage state in visual working memory
title_fullStr Interval between two sequential arrays determines their storage state in visual working memory
title_full_unstemmed Interval between two sequential arrays determines their storage state in visual working memory
title_short Interval between two sequential arrays determines their storage state in visual working memory
title_sort interval between two sequential arrays determines their storage state in visual working memory
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7206098/
https://www.ncbi.nlm.nih.gov/pubmed/32382102
http://dx.doi.org/10.1038/s41598-020-64825-4
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