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. 2019 Dec 18;10:5766. doi: 10.1038/s41467-019-13554-y

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© The Author(s) 2019

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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Fig. 1 — a Experimental design. b Memory retrieval (recognition index) is impaired (higher recognition index) following weak social recognition training (2 min exposure to novel mouse during training) at ZT10, independent of the time of training. c BMAL1 mRNA levels in the whole hippocampus are reduced at ZT10 compared to other time points (quantitative RT-PCR). The graph represents fold changes compared to expression levels at ZT4. *p < 0.05, compared to the other time points. All values are mean ± SEM. Individual data points are displayed as dots. *p < 0.05 as determined by two-way (b) or one-way (c) ANOVA with post hoc test. The results of the statistical analyses are presented in Supplementary Table 2. Source data are provided as a source data file.