Figure 1

Effects of feeding schedules and time of day on test performance. (A) Experiment 1. Discrimination Index (DI, time spent exploring the novel object as a percentage of time spent exploring both objects) scores on novel object recognition (NOR) test in a Y-maze. Chance level is 0.5 (red dotted line). (B) Experiment 2. DI scores on NOR test in an open field. (C) Experiment 3a. Alternation percentages in a Y-maze. Chance level is 50% (red dotted line). (D) Experiment 3b. Freezing % in shock box, 24 h after receiving foot shock.