Table 2.
Behavioral data (standard deviations in brackets).
| Healthy children/adolescents | Children/adolescents with ADHD | |
|---|---|---|
| RT (milliseconds) | ||
| Negative congruent | 774.24 (35.27) | 942.84 (40.92) |
| Negative incongruent | 865.41 (35.76) | 1006.93 (41.48) |
| Neutral congruent | 764.60 (35.14) | 923.83 (40.77) |
| Neutral incongruent | 860.64 (34.60) | 984.01 (40.22) |
| Positive congruent | 777.72 (35.09) | 931.90 (40.71) |
| Positive incongruent | 854.14 (33.83) | 999.13 (39.25) |
| All congruent | 772.18 (34.65) | 932.81 (40.20)a |
| All incongruent | 860.06 (34.15) | 996.69 (39.62)b |
| All negativec | 819.82 (34.84) | 974.88 (40.43) |
| All neutralc | 815.93 (34.05) | 953.93 (39.82) |
| All positive | 812.61 (34.32) | 965.51 (39.51) |
| Group⁎ | 816.12 (34.11) | 964.78 (39.58)d |
| Accuracy (percent) | ||
| Negative congruent | 71.3 (2.8) | 69.6 (3.2) |
| Negative incongruent | 66.3 (2.9) | 64.8 (3.4) |
| Neutral congruent | 72.3 (2.3) | 70.1 (2.6) |
| Neutral incongruent | 67.8 (2.9) | 69.2 (3.4) |
| Positive congruent | 73.2 (2.8) | 69.5 (3.3) |
| Positive incongruent | 65.5 (2.8) | 66.0 (3.2) |
| All congruent | 72.3 (2.3) | 69.7 (2.7) |
| All incongruent | 66.5 (2.6) | 66.7 (3.0) |
| All negative | 68.8 (2.6) | 67.2 (3.0) |
| All neutral | 70.0 (2.4) | 69.7 (2.7) |
| All positive | 69.4 (2.4) | 67.7 (2.8) |
| Group | 69.4 (2.3) | 68.2 (2.6) |
Groups differed (p < 0.05) in RT for both congruent and incongruent trials (a and b respectively). In addition, participants were slower for negative relative to neutral trials (c). Also there was overall significance group difference in RT between healthy children/adolescents and children/adolescents with ADHD (d).
⁎
p < 0.05 (difference between a and b, c and d).