TABLE 2.
Full Scale IQ-adjusted mean neurocognitive performance in MD versus HC groups
| Neurocognitive test | MD (N ≤ 20) |
HC (N ≤ 13) |
p | d |
|---|---|---|---|---|
| SST | ||||
| Stop Signal Latency (ms)a | 223 (190) | 506 (153) | 0.0008 | 1.64 |
| Stop Signal RT (ms)b | 225 (133) | 71 (107) | 0.006 | 1.28 |
| Go RT (ms)b | 448 (101) | 577 (81) | 0.003 | 1.42 |
| CPT | ||||
| d′a | 1.54 (1.3) | 2.08 (1.01) | 0.26 | 0.47 |
| βc | 0.32 (0.3) | 0.13 (0.2) | 0.08 | 0.75 |
| Hit RT (ms)b | 332 (85) | 321 (67) | 0.73 | 0.14 |
| CWIT | ||||
| Raw, Color Naming Score (s)b | 35 (9) | 27 (7) | 0.05 | 0.88 |
| Raw, Word Reading Score (s)b | 25 (10) | 26 (8) | 0.89 | 0.06 |
| Raw, Inhibition Score (s)b | 65 (21) | 57 (16) | 0.31 | 0.43 |
| Raw, Inhibition/Switching Score (s)b | 73 (21) | 66 (16) | 0.37 | 0.39 |
Note. Standard deviations in parentheses. MD=at risk with nonmanic mood disorder. HC=healthy control. d=effect size. WASI=Wechsler Abbreviated Scale of Intelligence. IQ=intelligence quotient. CWIT=Color–Word Interference Test. CPT=Continuous Performance Task. d′=attentiveness. β=response bias index. RT=reaction time. SST=Stop Signal Task.
a
Higher scores=better performance.
b
Lower scores = better performance.
c
Lower scores = a relatively more impulsive response style.