Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2016 Aug 18;9:78. doi: 10.1186/s13041-016-0255-x

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© 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.

PMC Copyright notice

Fig. 2 — The effects of dim light on the locomotor activities and the arousal levels. The grey bar shows the four hours of dim light (30 lux) that was administered during ZT12-ZT16 to the WT (N = 6) and the PK2−/− mice (N = 7). a. Compared to darkness, dim light significantly decreased the locomotor activity in the WT mice (P < 0.0001, Two-way ANOVA, *, P < 0.05, **, P < 0.01, ***, P < 0.001 by Bonferroni’s post hoc test). The inhibitory effect of dim light on the locomotor activity was not significant for the PK2−/− mice (P > 0.05, Two-way ANOVA). The inserts show the locomotor activities in the entire four hours (**, P < 0.01, paired t-test). b. Compared to darkness, dim light significantly decreased the arousal levels in the WT mice (P < 0.0001, Two-way ANOVA, *, P < 0.05, **, P < 0.01, ***, P < 0.001, by Bonferroni’s post hoc test). The inhibitory effect of dim light on the arousal levels of the PK2−/− mice was only significant for the first 30 min (P < 0.05, Two-way ANOVA, **, P < 0.01, by Bonferroni’s post hoc test)