Table 3.
Parameters of horizontal and vertical visually guided saccades
| Saccade parameters | ||||
|---|---|---|---|---|
| Type of saccade | Group | Latency (ms) | Gain | Std Dev. |
| Horizontal saccades | ||||
| Single‐step + multistep | CTXwD | 235 ± 36 (12) | 0.92 ± 0.12 (13) | 0.22 ± 0.09 (13) |
| CTXnD | 212 ± 20 (6) | 0.88 ± 0.06 (6) | 0.15 ± 0.05 (6) | |
| Ctrl | 204 ± 23 (19) | 0.95 ± 0.03 (19) | 0.12 ± 0.06 (19) | |
| Single‐step saccades | ||||
| CTXwD | 243 ± 60 (11) | 1.01 ± 0.08 (12) | 0.22 ± 0.12 (12) | |
| CTXnD | 208 ± 31 (4) | 0.97 ± 0.01 (4) | 0.10 ± 0.06 (4) | |
| Ctrl | 209 ± 30 (19) | 0.97 ± 0.04 (19) | 0.09 ± 0.07 (19) | |
| Multistep saccades (first step) | ||||
| CTXwD | 225 ± 36 (11) | 0.82 ± 0.09 (12) | 0.14 ± 0.05 (12) | |
| CTXnD | 212 ± 19 (6) | 0.85 ± 0.06 (6) | 0.15 ± 0.06 (6) | |
| Ctrl | 208 ± 30 (14) | 0.91 ± 0.05 (16) | 0.12 ± 0.07 (16) | |
| Vertical saccades | ||||
| Single‐step + multistep | CTXwD | 256 ± 74 (9) | 0.88 ± 0.17 (9) | 0.26 ± 0.08 (9) |
| CTXnD | 213 ± 18 (5) | 0.98 ± 0.21 (5) | 0.28 ± 0.11 (5) | |
| Ctrl | 216 ± 29 (18) | 0.99 ± 0.10 (18) | 0.17 ± 0.08 (18) | |
| Single‐step saccades | ||||
| CTXwD | 265 ± 78 (8) | 0.98 ± 0.09 (8) | 0.26 ± 0.08 (8) | |
| CTXnD | 213 ± 19 (5) | 1.08 ± 0.16 (5) | 0.28 ± 0.15 (5) | |
| Ctrl | 220 ± 31 (17) | 0.99 ± 0.10 (17) | 0.17 ± 0.09 (17) | |
| Multistep saccades (first step) | ||||
| CTXwD | 207 ± 35 (4) | 0.60 ± 0.04 (9) | 0.13 ± 0.07 (4) | |
| CTXnD | 225 ± 35 (2) | 0.72 ± 0.13 (3) | 0.21 ± 0.12 (3) | |
| Ctrl | 211 ± 23 (10) | 0.91 ± 0.12 (11) | 0.14 ± 0.08 (18) | |
Ctrl, control subjects, CTXwD, patients with dentate involvements, CTXnD, patients without dentate involvements. Values are means ± standard deviations (number of subjects).