Table 2.
Measures of the oddball task: descriptive statistics.
| ADHD (N = 19) | Control (N = 16) | |||||||
|---|---|---|---|---|---|---|---|---|
| Mean (SD) | Range | Mean (SD) | Range | Mean (SD) | Range | Mean (SD) | Range | |
| Facial stimuli | ||||||||
| Omission errors | 0.4 (0.8) | 0–3 | 3.4 (4.8) | 0.0–17.0 | 0.4 (0.7) | 0–2 | 0.4 (0.5) | 0–1 |
| Commission errors | 1.4 (1.2) | 0–5 | 3.4 (3.9) | 0.0–13.0 | 1.6 (1.7) | 0–6 | 1.7 (2.4) | 0–8 |
| RT (ms) | 487.8 (48.2) | 426.0–607.4 | 498.6 (107.2) | 343.5–804.7 | 475.2 (49.7) | 401.8–560.7 | 513.6 (43.3) | 419.9–563.8 |
| RTSD | 105.9 (48.9) | 45.4–208.8 | 214.4 (114.3) | 45.0–428.5 | 97.4 (37.3) | 51.0–165.2 | 119.4 (51.4) | 54.4–217.4 |
| Non-facial stimuli | ||||||||
| Omission errors | 0.0 (0.0) | 0–0 | 2.7 (4.2) | 0.0–12.0 | 0.0 (0.0) | 0 -0 | 0.9 (2.1) | 0–8 |
| Commission errors | 0.4 (0.7) | 0–2 | 2.7 (3.2) | 0.0–10.0 | 0.2 (0.4) | 0–1 | 0.5 (0.9) | 0–0 |
| RT (ms) | 423.6 (45.8) | 373.6–526.9 | 422.0 (81.6) | 302.5–560.3 | 426.5 (35.4) | 375.5–492.1 | 450.0 (65.7) | 396.5–663.0 |
| RTSD | 76.5 (32.4) | 38.3–142.4 | 152.2 (85.9) | 43.3–298.6 | 80.3 (43.0) | 37.0–176.9 | 78.9 (44.1) | 0.0–155.8 |
Performance of the ADHD and control group participants in response to target faces/shapes (omission errors, reaction time [RT], and reaction time variability [RT standard deviation, RTSD]) and non-target faces/shapes (commission errors) before (time 0, baseline) and after (0 + 25) sleep deprivation.