Fig. 5.

In experiment 2, the animals traversed the familiar half of the digital 8–shaped track first and then ran on the second, novel half of the track before running on the familiar half again. During POST, the independent contributions of both regions to the explained variance (i.e., after controlling for any correlation between regions) were significantly above chance. Also, the EV for the familiar half was significantly above that for the novel half (p < 0.05, Mann–Whitney Utest). For both halves, the explained variance had slower time constants of decay (∼43 min), in comparison with that of the familiar-only experiments.