Table 3. Latency to escape (s) and distance travelled (cm) in a radial arm water maze among HIV-1 Tat transgenic [Tat(+)] young adult and middle-aged male mice and age-matched non-Tat-expressing controls [Tat(−)].

Latency to Escape (s)	Young adult		Middle-aged
	Tat(−) n = 8–9	Tat(+) n = 12	Tat(−) n = 12	Tat(+) n = 10
Day 1	47 ± 6	36 ± 3	49 ± 6	37 ± 4
Day 2	49 ± 8	27 ± 2*	35 ± 6	37 ± 4
Day 3	50 ± 5	25 ± 3^	31 ± 6^	33 ± 4^
Distance (cm)
Day 1	372 ± 31	386 ± 29	410 ± 30	387 ± 30
Day 2	318 ± 32	320 ± 27	334 ± 37	380 ± 31
Day 3	349 ± 48	271 ± 23	307 ± 29	298 ± 31

^*indicates an effect for young adult Tat(+) mice to differ from young adult Tat(−) mice. ^{^}indicates a difference from young adult Tat(−) controls. p < 0.05.