| Task | Low PCS group 1 | Moderate PCS group 2 | Control group 3 |
| Response accuracy (% correct) | |||
| (1) Simple reaction time | 100.00 (0.00) | 99.56 (1.01) | 100.00 (0.00) |
| (2) Complex reaction time | 93.78 (6.89) | 93.89 (5.78) | 93.50 (5.68) |
| (3) One back task | 96.89 (3.33) | 93.44 (4.67) | 95.60 (3.50) |
| (4) Monitoring | 100.00 (0.00) | 100.00 (0.00) | 100.00 (0.00) |
| (5) Choice reaction time | 98.22 (4.06) | 72.22 (26.31) | 93.70 (4.47) |
| (6) Matching | 93.00 (5.87) | 93.89 (4.86) | 92.60 (4.70) |
| (7) Learning | 79.89 (7.87) | 77.78 (10.63) | 80.10 (5.80) |
| (8) Incidental learning | 75.89 (18.75) | 63.89 (21.22) | 76.30 (13.11) |
| Response speed (ms) | |||
| (1) Simple reaction time | 257.78 (39.61) | 277.67 (48.44) | 244.50 (23.00) |
| (2) Complex reaction time | 582.33 (72.79) | 703.44 (147.54) | 586.30 (99.00) |
| (3) One back task | 561.44 (105.11) | 827.67 (129.47)*† | 594.70 (137.79 |
| (4) Monitoring | 326.44 (71.80) | 377.11 (65.36) | 308.20 (82.90) |
| (5) Choice reaction time | 391.11 (54.26) | 499.78 (89.77)† | 429.20 (80.54) |
| (6) Matching | 1212.56 (401.82) | 1708.22 (341.51)*† | 1223.70 (248.77) |
| (7) Learning | 1132.11 (179.24) | 1221.89 (256.51) | 1119.70 (142.94) |
| (8) Incidental learning | 1215.11 (215.62) | 1263.86 (236.24) | 1206.30 (126.56) |
PCS, post concussive symptoms.
Values are mean (SD).
*Significantly different from control group (p<0.05).
†Significantly different from low PCS group 1 (p<0.05).