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. Author manuscript; available in PMC: 2016 Feb 5.
Published in final edited form as: Pharmacol Biochem Behav. 2012 Feb 23;101(4):544–552. doi: 10.1016/j.pbb.2012.02.015

Figure 1.

Figure 1

The figure summarizes the average activity and its standard deviation (SD) of the placebo pellet group (N = 8). The upper histograms (Fig 1a) summarize the total locomotor activity count for 24 hours for the 12 experimental days and shows that the horizontal activity, vertical activity 1 and vertical activity 2 during the 12 experimental days are similar with minor fluctuations. The middle histogram (Fig 1b) summarizes this hourly (60 min) horizontal, vertical 1, and vertical 2 activity of experimental Days 1, 5, and 9 next to each other. These hourly histograms show similarity of the circadian activity pattern on the specified days. The lower data (Fig 1C) show the statistical analysis using the cosine curve statistical analysis test for these days and shows that the rhythmic activity is similar with minor non-significant fluctuations. The symbols 0, + indicate the experimental day 1, and 9, respectively. Experimental day 5 was identical to day 1. The curves demonstrate that the activity patterns of these days were similar.