Fig. 4.

Total sample stage object exploration (s) at each of the two NOR test timepoints. Tests at timepoint 1 (dark grey bars) were conducted at 56 (the middle-aged cohort) and 12 weeks (the younger-adult cohort). Tests at timepoint 5 (light grey bars) were conducted at 79 (the middle aged cohort) and 35 weeks (the younger-adult cohort). Error bars represent the standard error of the mean. Asterisks show significant differences between timepoints, ***p < 0.001. Hashtags show significant differences between age groups at the corresponding timepoints, ^#p < 0.05, ^###p < 0.001.