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Novel-tank test, 6-min trial (n = 10 per group; mean ± 1 SD). (A) The number of transitions to the upper half of the tank. (B) Time spent in the upper half of the tank (s). *, Significant differences determined by using the Kruskal–Wallis test (P < 0.05) followed by a Bonferroni test (P < 0.05).
