Fig. 6

Novel object recognition in male and female wild-type and FDNQ175 mice from 6 to 12 months of age. Mean ± SEM of the recognition index, for exploring a novel object versus a familiar object on the second day of novel object recognition test, of wild-type (+/+) and heterozygous FDNQ175 (FDNQ175/+) male and female mice at 6 months (n = 13–20 per group) (A), 8 months (n = 12–18 per group) (B), 10 months (n = 12–20 per group) (C), and 12 months (n = 11–20 per group) (D) of age. * indicates significant difference (p < 0.05) between recognition index of the familiar and the novel object