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. 2018 May 21;7:e19. doi: 10.1017/jns.2018.10

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© The Author(s) 2018

This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 3. — Spatial learning and memory. (a) Distance to reach the platform in adult control mice (–○–), adult mice fed the polyphenol-rich extract from grape and blueberry (PEGB)-enriched diet (), aged control mice (–□–) and aged PEGB-enriched diet-fed mice (). Values are means, with their standard errors represented by vertical bars (n 14–20 per group). Performance differed significantly on days 4 and 5 of the learning phase (* P < 0·05, ** P < 0·01 v. adult control). (b) Percentage of time spent by control mice () and PEGB-enriched diet-fed mice () in the target quadrant during the probe test. The dotted line corresponds to chance level (25 %). Values are means, with their standard errors represented by vertical bars (n 14–20 per group). All groups remembered the platform location, as they spent more time in the target quadrant (* P < 0·05, ** P < 0·01, *** P < 0·001 v. chance level).

Inline graphic — Spatial learning and memory. (a) Distance to reach the platform in adult control mice (–○–), adult mice fed the polyphenol-rich extract from grape and blueberry (PEGB)-enriched diet (), aged control mice (–□–) and aged PEGB-enriched diet-fed mice (). Values are means, with their standard errors represented by vertical bars (n 14–20 per group). Performance differed significantly on days 4 and 5 of the learning phase (* P < 0·05, ** P < 0·01 v. adult control). (b) Percentage of time spent by control mice () and PEGB-enriched diet-fed mice () in the target quadrant during the probe test. The dotted line corresponds to chance level (25 %). Values are means, with their standard errors represented by vertical bars (n 14–20 per group). All groups remembered the platform location, as they spent more time in the target quadrant (* P < 0·05, ** P < 0·01, *** P < 0·001 v. chance level).