Table 3.

The representative parameters of water maze performance in the probe trial of the Zolpidem (ZOL) dose-response experiment. The key to regions used in the analysis is given in Fig. 1.

	ZOL 0.5	ZOL 1.0	ZOL 2.0	ANOVA, F(2,21)	P
Whole water maze parameters
Distance (m±SEM)	10.93±0.97	11.50±0.96	12.75±0.56	1.187	0.325
Platform quadrant (NE) parameters
Distance (m±SEM)	2.41±0.29	2.18±0.51	2.22±0.44	0.083	0.920
Time (s±SEM)	11.86±1.44	9.64±1.92	9.75±2.06	0.471	0.631
Peripheral ring parameters
Distance (m±SEM)	4.16±0.61	6.09±0.89	7.85±0.82*	5.564	0.012
Time (s±SEM)	33.48±3.68	39.86±1.67	42.80±3.35	2.473	0.109
Platform ring parameters
Distance (m±SEM)	5.27±0.68	4.48±0.31	4.00±0.65	1.247	0.308
Time (s±SEM)	21.46±3.05	17.31±1.38	14.50±2.60	2.049	0.154
Target region parameters
Distance (m±SEM)	1.51±0.27	1.12±0.14	0.99±0.22	1.520	0.242
Time (s±SEM)	7.26±1.36	4.03±0.52*	3.51±0.76*	4.596	0.022
Platform parameters
Number of entries (±SEM)	1.25±0.41	0.38±0.18	0.50±0.19	2.813	0.083
Distance (m±SEM)	0.097±0.031	0.047±0.028	0.053±0.023	0.945	0.405

^*P<0.05 compared to ZOL 0.5 group.