Figure 5
From: Zebrafish automatic monitoring system for conditioning and behavioral analysis

Polarization in groups (N = 3, 6, 8, 11 and 16 fishes) of different sizes of zebrafish. The horizontal lines of each group denote the mean ± SD and the asterisks on the brackets indicate statistical difference in comparison with the frequency of fish between the attempt and the control group by student t test (*p < 0.05; **p < 0.001, ***p < 0.0001).