Excluded (total exploration < 20 s, rule set in advance): WT4, KO1
Mean total exploration, all mice before exclusion: WT 36.0 s; KO 34.4 s
WT: n = 11, mean DI 0.293 (95% CI 0.162 to 0.424); one-sample t-test vs 0: t = 4.99, p = 0.0005; mean total exploration 38.2 s
KO: n = 11, mean DI 0.105 (95% CI -0.079 to 0.290); one-sample t-test vs 0: t = 1.27, p = 0.2333; mean total exploration 36.9 s
KO - WT difference in DI: -0.188 (95% CI -0.401 to 0.025), Welch's t-test p = 0.0803