The Effects of Early-Life Predator Stress on Anxiety- and Depression-Like Behaviors of Adult Rats
Figure 4
Behaviors of rats in open field test and elevated plus maze test in the long-term (30 days) after 2-week predator stress. (a) Total distance in open field test. (b) Face-washing times in open field test. (c) Percent of open arm entries in elevated plus maze test. (d) Percent of time spent on open arms in elevated plus maze test. No significant differences were found in the above tests between stimulated and control Wistar or WKY rats. Note that control WKY rats showed more face-washing times in open field test (b) and more open arms entry times in elevated plus maze test (c) compared with control Wistar rats. 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.
