B. The platform crossing times of rats in each group measured by spatial probe test.
	Sham	HI	HI+S	F value	DF
Platform crossing times	8.1±3.8	2.3±2.0*	5.9±3.1**	8.903	2

One-way ANOVA was used to compare the mean difference among the three groups. Tukey’s multiple comparisons test was used for post hoc test.

^*p<0.001 between sham group and HI group,

^**p<0.05 between HI group and HI+S group.