Table 4. Differences between male and female mice in the open field test (arithmetic means ± SEM).

parameter		WT	WTNH4Cl	kl/klNH4Cl	WTLVD	kl/klLVD
speed [cm/s]	♂	3.00 ± 0.58	2.75 ± 0.39	4.86 ± 0.47	2.37 ± 0.68	2.51 ± 0.40
	♀	2.55 ± 0.41	2.47 ± 0.58	4.11 ± 0.29	2.53 ± 0.64	2.24 ± 0.45
	ttest	0.5266	0.5381	0.1651	0.8619	0.6612
total distance [m]	♂	37.71 ± 6.95	36.03 ± 5.58	61.13 ± 6.53	35.91 ± 7.44	33.81 ± 6.45
	♀	33.09 ± 3.30	32.27 ± 9.82	56.84 ± 5.37	34.74 ± 6.83	35.34 ± 7.33
	ttest	0.5553	0.9000	0.6128	0.9103	0.8762
time in border area [min]	♂	29.66 ± 0.10	29.48 ± 0.40	27.47 ± 0.75	29.28 ± 0.32	29.86 ± 0.05
	♀	29.35 ± 0.39	29.62 ± 0.20	26.43 ± 0.66	28.45 ± 0.99	29.71 ± 0.15
	ttest	0.4611	0.8112	0.3062	0.4423	0.3597
distance in border area [m]	♂	36.31 ± 6.39	34.29 ± 5.93	58.04 ± 5.78	34.40 ± 4.56	33.03 ± 6.28
	♀	34.50 ± 3.45	31.39 ± 9.61	51.21 ± 4.70	34.40 ± 6.77	34.04 ± 6.77
	ttest	0.5153	0.9585	0.3627	1	0.9141
time spent in corners [min]	♂	24.03 ± 1.62	22.33 ± 2.05	18.96 ± 0.88	23.24 ± 2.32	25.41 ± 1.12
	♀	23.97 ± 1.58	24.16 ± 1.61	17.94 ± 1.62	24.91 ± 2.39	23.95 ± 2.13
	ttest	0.9805	0.3798	0.6167	0.6276	0.5417
distance in center area [m]	♂	1.48 ± 0.69	1.74 ± 1.28	5.63 ± 1.32	1.35 ± 1.26	0.77 ± 0.39
	♀	1.60 ± 0.86	0.87 ± 0.48	3.09 ± 0.85	0.49 ± 0.17	1.30 ± 0.68
	ttest	0.8627	0.5802	0.1446	0.5154	0.4969
visits in center area	♂	5.73 ± 1.75	5.13 ± 2.75	23.39 ± 6.39	9.67 ± 7.97	5.82 ± 2.68
	♀	10.18 ± 4.68	7.25 ± 3.44	36.53 ± 8.42	3.00 ± 1.75	9.60 ± 4.74
	ttest	0.3837	0.6284	0.2482	0.4329	0.4854
time in center area [min]	♂	0.35 ± 0.10	0.53 ± 0.40	2.53 ± 0.75	0.72 ± 0.32	0.14 ± 0.05
	♀	0.65 ± 0.39	0.39 ± 0.20	3.57 ± 0.66	1.56 ± 0.99	0.29 ± 0.15
	ttest	0.4611	0.8112	0.3062	0.4423	0.3597
number of rearings in border area	♂	96.73 ± 19.95	68.50 ± 15.56	154.69 ± 15.97	68.50 ± 24.14	86.82 ± 15.65
	♀	71.64 ± 20.00	69.75 ± 30.48	126.18 ± 14.07	51.83 ± 14.50	68.50 ± 16.09
	ttest	0.3850	0.9813	0.1916	0.5671	0.4251
rearing time in border area [min]	♂	3.22 ± 0.81	3.18 ± 1.00	7.56 ± 0.91	2.59 ± 1.14	3.10 ± 0.67
	♀	2.83 ± 0.91	2.33 ± 0.96	6.37 ± 0.63	2.56 ± 1.13	2.52 ± 0.79
	ttest	0.7506	0.5128	0.1016	0.9865	0.5800
number of rearings in center area	♂	1.46 ± 0.78	1.75 ± 1.05	5.69 ± 1.67	1.67 ± 1.31	0.27 ± 0.20
	♀	1.27 ± 0.68	0.25 ± 0.29	9.18 ± 2.59	1.17 ± 0.83	1.4 ± 0.95
	ttest	0.8618	0.4543	0.3019	0.7538	0.2364
rearing time in center area [min]	♂	1.36 ± 0.63	0.28 ± 0.20	6.92 ± 2.05	0.18 ± 0.16	0.34 ± 0.23
	♀	1.10 ± 0.76	0.40 ± 0.36	13.91 ± 5.03	0.18 ± 0.17	0.99 ± 0.86
	ttest	0.7945	0.7266	0.2573	1	0.4501