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. 2018 Aug 7;236(11):2959–2969. doi: 10.1007/s00221-018-5352-x

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© The Author(s) 2018

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided 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.

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Fig. 5 — Quantification of discrimination behavior. Bars show the discrimination score d (mean ± SEM) obtained in different experiments. P values are from a Wilcoxon signed rank test comparing the observed discrimination score d against the null hypothesis that d = 0. Horizontal line shows statistical comparison between the discrimination score d obtained in pooled experiments 1–3 (first 18 trials only) and the d value of the corresponding pre-odor control (Wilcoxon rank-sum test)