Effects of bilateral floccular lesions on HOKR adaptation induced by spaced training. A, Photograph of coronal section of right paraflocculus (PFL) and flocculus (FL) after lesioning. Scale bar, 500 μm. B, HOKR gain increase after 4 × 200 cycles of screen oscillation at 1 h intervals (S1 h) for lesioned mice (filled column, n = 6). Control data (open column, n = 9) are those shown in Figure 2C. C, Similar to B but after 4 × 200 cycles of screen oscillation at 1 d intervals (S1d, n = 4). Control data (n = 7) are those shown in Figure 2D. **p < 0.01 (Student's t test). Error bars indicate SE.