Figure 7.

Performance in the LTDM paradigm for young and aged groups in the control feeding condition and an aged group in the vitamin A-enriched diet condition in experiment 3B. A, Normalized discriminative ratio over the last two sessions of training before reaching the criterion in stage 1. All groups of mice entered significantly faster into baited arms than unbaited ones. B, Mean ± SEM percentage of correct choices over the two sessions of the two-choice tests. Comparison of young and aged control groups, °p < 0.05.