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. 2014 Apr 15;2014:163908. doi: 10.1155/2014/163908

Figure 2.

Figure 2

Total distance (a), rearing times (b), face-washing times (c), and percent of time spent on central area (d) in open field test in the short-term (two days) after 2-week predator stress. The stimulation decreased total distance traveled by Wistar rats (a) and face-washing times of WKY rats (c), respectively. Note that, compared to control Wistar rats, control WKY rats showed significantly decreased total distance (a) and increased washing times (c). Each bar indicates a group defined according to strains (Wistar rats and WKY rats) and predator exposure (red bar: Wistar rats; white bar: WKY rats; unshadowed bar: control group; shadowed bar: predator exposure). Values are shown as mean ± SEM. The results of t-test are shown. *P < 0.05; **P < 0.01 for the effects of predator stress.