A1 Journal article (refereed)
The two-stage process in visual working memory consolidation (2020)


Ye, C., Liang, T., Zhang, Y., Xu, Q., Zhu, Y., & Liu, Q. (2020). The two-stage process in visual working memory consolidation. Scientific Reports, 10, Article 13564. https://doi.org/10.1038/s41598-020-70418-y


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Publication details

All authors or editors: Ye, Chaoxiong; Liang, Tengfei; Zhang, Yin; Xu, Qianru; Zhu, Yongjie; Liu, Qiang

Journal or series: Scientific Reports

eISSN: 2045-2322

Publication year: 2020

Publication date: 11/08/2020

Volume: 10

Article number: 13564

Publisher: Nature Publishing Group

Publication country: United Kingdom

Publication language: English

DOI: https://doi.org/10.1038/s41598-020-70418-y

Publication open access: Openly available

Publication channel open access: Open Access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/71423


Abstract

Two hypotheses have been proposed to explain the formation manner for visual working memory (VWM) representations during the consolidation process: an all-or-none process hypothesis and a coarse-to-fine process hypothesis. However, neither the all-or-none process hypothesis nor the coarse-to-fine process hypothesis can stipulate clearly how VWM representations are formed during the consolidation process. In the current study, we propose a two-stage process hypothesis to reconcile these hypotheses. The two-stage process hypothesis suggests that the consolidation of coarse information is an all-or-none process in the early consolidation stage, while the consolidation of detailed information is a coarse-to-fine process in the late consolidation stage. By systematically manipulating the encoding time of memory stimuli, we asked participants to memorize one (Experiment 1) or two (Experiment 2) orientations in different encoding time intervals. We found that the memory rate increased linearly as the encoding time increased. More importantly, VWM precision remained constant when the encoding time was short, while the precision increased linearly as the encoding time increased when the encoding time was sufficient. These results supported the two-stage process hypothesis, which reconciles previous conflicting findings in the literature.


Keywords: working memory; visuality; memory (cognition)

Free keywords: visuaalinen muisti


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Ministry reporting: Yes

Reporting Year: 2020

JUFO rating: 1


Last updated on 2022-20-09 at 14:08