Table 10.
Changes in the cognitive variables as a function of response status for TBI. Entries for the three categories of response status are the mean change in the variable from BL to EL.
| Least Squares Means (SE) | ||||||||
|---|---|---|---|---|---|---|---|---|
| Task | Change Variable | F | MSE | p | Decrease (D) | No Change (N) | Increase (I) | Ordering |
| SRT | Mean RT (ms) | 11.98 | 1102 | <0.001 | 6 (2) | −6 (3) | −20 (5) | I < N = D |
| GNG | Mean RT (ms) | 19.82 | 989 | <0.001 | 11 (2) | −1 (3) | −23 (5) | I < N = D |
| ANT | RT 0 cues (ms) | 2.83 | 7767 | 0.060 | −42 (7) | −26 (8) | −62 (14) | I < N = D |
| RT 2 cues (ms) | 8.30 | 9681 | <0.001 | −12 (8) | −50 (9) | −71 (16) | I = N < D | |
| Alerting (ms) | 9.68 | 10,931 | <0.001 | −31 (9) | 24 (9) | 9 (17) | I = N > D | |
| RT center cues (ms) | 1.47 | 6917 | 0.232 | −48 (7) | −45 (7) | −71 (13) | I = N = D | |
| RT spatial cues (ms) | 11.02 | 9036 | <0.001 | 10 (8) | −26 (9) | −63 (15) | I < N = D | |
| Orienting (ms) | 9.55 | 7584 | <0.001 | −59 (7) | −18 (8) | −7 (14) | I = N > D | |
| RT incongruent flankers (ms) | 0.25 | 11,442 | 0.782 | 13 (9) | 6 (10) | 19 (17) | I = N = D | |
| RT congruent flankers (ms) | 11.08 | 13,433 | <0.001 | 0 (9) | −20 (10) | −98 (19) | I < N = D | |
| Conflict (ms) | 9.90 | 17,168 | <0.001 | 13 (11) | 25 (12) | 117 (21) | I > N = D | |
| SMS | Intercept, new items (ms) | 4.87 | 113,160 | 0.008 | 55 (27) | 39 (30) | −126 (53) | I < N = D |
| Slope, new items (ms/item) | 14.99 | 3406 | <0.001 | 31 (5) | 13 (5) | −24 (9) | I < N = D | |
| Intercept, old items (ms) | 6.80 | 45,273 | 0.001 | 35 (17) | −1 (19) | −102 (33) | I < N = D | |
| Slope, old items (ms/item) | 3.40 | 769 | 0.035 | 16 (2) | 9 (3) | 6 (4) | I = N = D | |
| CRT | RT new items (ms) | 9.13 | 26,955 | <0.001 | 9 (14) | −34 (15) | −114 (26) | I < N = D |
| RT old items (ms) | 1.68 | 26,879 | 0.189 | 4 (14) | −8 (15) | −50 (26) | I = N = D | |
| Percent change in capacity (%) | 13.41 | 2095 | <0.001 | −18 (4) | −10 (4) | 25 (7) | I > N = D | |
Note: SRT = simple reaction time task, GNG = go/no-go task, ANT = attentional network task, SMS = Sternberg memory search task, CRT = cued recognition task, RT = reaction time, Neg. = negative, MSE = mean square error.