Table 1.

The results of short-term memory in different study groups

Groups(10 ratsineach group)	50 cm, 2 h/day (Mean±S.E)	100 cm, 2 h/day (Mean±S.E)	50 cm, 2 h/day For 14 days (Mean±S.E)	100 cm, 2 h/day For 14 days (Mean±S.E)
Experiment	157.8±79.8 Sec	174±71.9 Sec	254.9±94.1 Sec	420.8±91.2 Sec
Sham	469.8±69.1 Sec	433.9±74.6 Sec	492.5±71.7 Sec	390.6±85.6 Sec
Control	339.6±90.8 Sec	339.6±90.8 Sec	339.6±90.8 Sec	339.6±90.8 Sec
Test value(df)	6.786 (2)	5.584 (2)	4.881 (2)	6.54 (2)
P-value	*0.034	0.061	0.087	0.763

^* P-values ≤0.05, Statistic test: Kruskal-Wallis test