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. 2016 Jun 10;17:34. doi: 10.1186/s12868-016-0271-x

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© The Author(s) 2016

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. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 8 — Changes in the sleep-wakefulness cycle in group 4 mice after administration of proneurotoxin MPTP. Percentage (12 h = 100 %) of wake time (blue bars), NREM sleep time (brown bars), and REM sleep time (green bars) during the light and dark (shaded rectangle) 12-h periods before (baseline) as well as 7 and 14 days after MPTP administration. *Changes from baseline significant at p < 0.01 (N = 9)