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. 2017 Oct 30;7:14305. doi: 10.1038/s41598-017-13938-4

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© The Author(s) 2017

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/.

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Summary of main analyses. Panel (A) Within-subject RSAs were carried out between the three phases of the experiment. Panel (B) Same- versus-different RSA. Matrix comparing pattern similarity between same- versus-different videos. Same-video correlations are shown on-diagonal (red), different–video correlations are shown off-diagonal (blue), and the weights sum to zero. Run effects within Day 1 were accounted for by not including between-run comparisons (black). Panel (C) Weighted RSA (example for a single participant). Here, only the same–video correlations along the diagonal are considered. Correlations are weighted positively and negatively by a factor of interest (e.g. memory performance) such that the value along the diagonal sums to zero. This contrast is orthogonal to the same- versus-different RSA, as it only detects regions where reinstatement is greater for videos that are weighted positively; if all videos were reinstated equally, the resulting contrast would sum to zero. Three inter-subject RSAs were also performed, corresponding to the analyses shown in Panel A. Here, matching videos from the Enc, ImRet and DelRet phases were compared between subjects rather than within subject.