Table 2. Results of the cognitive tasks performance.
| Early-stage PD | Healthy Control | P value | |
|---|---|---|---|
| Visual Go/No-Go task | |||
| Number of participants | 19 | 30 | |
| Response time, ms | 420.3 (56.9) | 421.9 (47.0) | NS |
| Response time SD, ms | 92.07 (21.5) | 90.8 (17.6) | NS |
| Accuracy, % | 92.4 (4.1) | 95.4 (2.7) | 0.005* |
| Omission errors, % | 4.1 (4.9) | 1.6 (2.4) | NS |
| Commission errors, % | 21.4 (14.0) | 16.2 (9.9) | NS |
| Auditory Oddball task | |||
| Number of participants | 18 | 30 | |
| Response time, ms | 474.9 (88.0) | 504.5 (85.8) | NS |
| Response time SD, ms | 101.9 (35.0) | 106.1 (33.0) | NS |
| Accuracy, % | 99.4 (0.5) | 99.1 (1.9) | NS |
| Omission errors, % | 3.5 (4.0) | 2.5 (3.5) | NS |
| Commission errors, % | 0.27 (0.4) | 0.64 (2.0) | NS |
*Statistically significant after Bonferroni correction for multiple comparisons.
Performance values are mean (±standard deviation) per group; ms, milliseconds; NS, not significant.