The two-stage process in visual working memory consolidation
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
Published inScientific Reports
© 2020 the Authors
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. ...
PublisherNature Publishing Group
ISSN Search the Publication Forum2045-2322
Publication in research information system
MetadataShow full item record
Related funder(s)Academy of Finland
Funding program(s)Postdoctoral Researcher, AoF
Additional information about fundingThis research was supported by grants from the National Natural Science Foundation of China (NSFC 31700948 to Chaoxiong Ye, and NSFC 31571123 to Qiang Liu), and the Academy of Finland (decision number 333649 to Chaoxiong Ye). All the authors had full independence from the funding sources.
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