Table 3.
Comparison of eye movement performance across TS subgroups and Controls in all the tasks
| Task | Variable | Comparison (Group 1 vs. Group 2) | Group 1 (N) | Group 2 (N) | P value |
|---|---|---|---|---|---|
| Prosaccade | Latency (ms) | TS-low vs. Control | 265.1±3.4(20) | 274.8±5.3 (29) | <0.01* |
| TS-moderate vs. Control | 274.5±6.5 (19) | 274.8±5.3 (29) | 0.92 | ||
| TS-moderate vs. TS-low | 274.5±6.5 (19) | 265.1±3.4 (20) | 0.01* | ||
| Error rate (%) | TS-low vs. Control | 0.64±0.23 | 0.22±0.19 | 0.25 | |
| TS-moderate vs. Control | 0.68±0.24 | 0.22±0.19 | 0.054+ | ||
| TS-moderate vs. TS-low | 0.68±0.24 | 0.64±0.23 | 0.41 | ||
|
| |||||
| Antisaccade | Latency (ms) | TS-low vs. Control | 425.0±13.2 | 410.4±10.9 | <0.005* |
| TS-moderate vs. Control | 405.4±13.5 | 410.4±10.9 | 0.46 | ||
| TS-moderate vs. TS-low | 405.4±13.5 | 425.0±13.2 | 0.06+ | ||
| Error rate (%) | TS-low vs. Control | 21.3±2.9 | 17.6±2.4 | 0.88 | |
| TS-moderate vs. Control | 25.1±2.9 | 17.6±2.4 | 0.82 | ||
| TS-moderate vs. TS-low | 25.1±2.9 | 21.3±2.9 | 0.94 | ||
|
| |||||
| 0-back | Latency (ms) | TS-low vs. Control | 333.5±11.6 | 338.3±9.7 | 0.45 |
| TS-moderate vs. Control | 337.2±12.0 | 338.3±9.7 | 0.72 | ||
| TS-moderate vs. TS-low | 337.2±12.0 | 333.5±11.6 | 0.73 | ||
| Error rate (%) | TS-low vs. Control | 4.8±1.2 | 3.3±1.0 | 0.10 | |
| TS-moderate vs. Control | 6.8±1.2 | 3.3±1.0 | <0.0001* | ||
| TS-moderate vs. TS-low | 6.8±1.2 | 4.8±1.2 | 0.0002 | ||
|
| |||||
| 1-back | Latency (ms) | TS-low vs. Control | 349.1±16.4 | 353.4±13.8 | 0.58 |
| TS-moderate vs. Control | 392.6±16.8 | 353.4±13.8 | <0.0001* | ||
| TS-moderate vs. TS-low | 392.6±16.8 | 349.1±16.4 | <0.0001* | ||
| Error rate (%) | TS-low vs. Control | 21.5±2.7 | 20.6±2.3 | 0.85 | |
| TS-moderate vs. Control | 23.6±2.8 | 20.6±2.3 | 0.04* | ||
| TS-moderate vs. TS-low | 23.6±2.8 | 21.5±2.7 | 0.03* | ||
|
| |||||
| Working Memory Load (1-back – 0-back) | Latency (ms) | TS-low vs. Control | 15.6±14.5 | 15.0±12.1 | 0.20 |
| TS-moderate vs. Control | 55.4±14.9 | 15.0±12.1 | <0.0001* | ||
| TS-moderate vs. TS-low | 55.4±14.9 | 15.6±14.5 | 0.0045* | ||
| Error rate (%) | TS-low vs. Control | 16.6±2.4 | 17.3±2.0 | 0.18 | |
| TS-moderate vs. Control | 16.9±2.4 | 17.3±2.0 | 0.23 | ||
| TS-moderate vs. TS-low | 16.9±2.4 | 16.6±2.4 | 0.93 | ||
Format for all values: mean±standard error. P values are from planned comparisons from mixed effect models for latency and Poisson regression models for error rate; Means and standard error values for Controls are the same as those in table 2;
*
significant,
+
marginally-significant tendency