Table 2.

Groups Means for Platform Trial Measures in the Water Maze

Sex	Task	Measure	Adult social control	Middle-aged social control	Middle-aged enriched
Male	Spatial	Swim time	30.6 ± 2.2	40.8 ± 2.1 a	39.3 ± 3.3
		Swim distance	482.4 ± 35.6	612.8 ± 31.7	561.9 ± 43.8
		Corridor	2.7 ± 0.3	1.8 ± 0.2 a	2.0 ± 0.3
		Swim speed	15.7 ± 0.4	14.7 ± 0.4	14.7 ± 0.4
	Cued	Swim time	21.5 ± 1.8	27.2 ± 2.4	19.5 ± 2.5
		Swim distance	263.3 ± 27.0	323.5 ± 40.0	211.2 ± 26.0
		Swim speed	11.9 ± 0.4	11.3 ± 0.5	11.9 ± 0.5
Female	Spatial	Swim time	30.1 ± 2.1	38.9 ± 1.9 a	33.3 ± 2.5
		Swim distance	519.1 ± 38.0	657.2 ± 32.9 ab	526.6 ± 41.1
		Corridor	2.8 ± 0.3	1.9 ± 0.2 a	2.3 ± 0.3
		Swim speed	16.6 ± 0.4	16.1 ± 0.3	15.5 ± 0.5
	Cued	Swim time	19.8 ± 1.9	23.4 ± 1.8	20.5 ± 2.4
		Swim distance	272.0 ± 26.6	305.6 ± 23.3	256.2 ± 31.7
		Swim speed	14.8 ± 0.6	13.4 ± 0.3	12.9 ± 0.5

^aP < 0.05 relative to adult social controls.

^bP < 0.05 relative to middle-aged enriched mice.