Table 2.

Statistical results of non-parametric analysis (Kruskal-Wallis ANOVA on ranks) for the performance in all the behavioral tests.

Behavior	Normality test (Shapiro–Wilk)	Equal variance test	H[3]	p
Elevated plus maze
Total time of inactivity (different than freezing)	<0.050	<0.050	16.451	<0.001*
Open field
Total time exploring the central area	<0.050	0.718	8.786	0.032*
Average of speed while exploring the periphery	<0.050	0.163	13.714	0.003*
Average of speed while exploring the central area	<0.050	0.194	2.302	0.512
Time spent self-grooming	<0.050	0.348	4.079	0.253
Time spent rearing	0.094	<0.050	9.625	0.022*
Object recognition test
Time spent exploring the familiar object	<0.050	0.987	5.217	0.157
Index of exploration of the new object (time exploring new object / time exploring familiar object)	<0.050	0.480	6.146	0.105
Social interaction test
Time pouncing	<0.050	<0.050	0.456	0.928
Rejection by pressing peers time	<0.050	<0.050	0.850	0.837
Time spent following peers (playing)	<0.050	<0.050	16.755	<0.001*
Time spent in single exploration	<0.050	0.641	9.041	0.029*

Alpha value set in 0.05. Please refer to the text for post hoc comparisons. *Significant statistical difference.