Figure 5.

Rats with H lesions or CA1 lesions were trained on the WM task 43 d after surgery (and without prior DMP training). WM acquisition was impaired after H lesions (blue, left; n = 8) as well as after CA1 lesions (red, right; n = 8). For comparison, WM data are included in each panel from Figure 3 (left) for the WM First condition (gray; H n = 8; CA1 n = 8), where animals were given the WM task 15 d after surgery (also without prior DMP training). Note that controls given the watermaze task without prior DMP training attained scores above 16% by day 4 (Figure 3, left). The dashed line indicates chance performance (4%); Error bars indicate SEM; (†) P < 0.07.