Interval between two sequential arrays determines their storage state in visual working memory
Li, Z., Zhang, J., Liang, T., Ye, C., & Liu, Q. (2020). Interval between two sequential arrays determines their storage state in visual working memory. Scientific Reports, 10, Article 7706. https://doi.org/10.1038/s41598-020-64825-4
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Scientific ReportsDate
2020Copyright
© The Authors 2020
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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Nature Publishing GroupISSN Search the Publication Forum
2045-2322Keywords
Publication in research information system
https://converis.jyu.fi/converis/portal/detail/Publication/35398095
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This research was supported by grants from the National Natural Science Foundation of China (NSFC31970989).License
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