Table 2.
Summary characteristics for demographic and SST variables in the neuroimaging sample (N = 73).
| T1 (n = 38) | T2 (n = 51) | T3 (n = 27) | |
|---|---|---|---|
| Demographics | |||
| Sex, % female | 32 | 45 | 33 |
| Hand, % right | 79 | 86 | 89 |
| Age, mean (SD) | 10.4 (0.5) | 11.8 (0.5) | 13.0 (0.5) |
| IQ, mean (SD) | 102.1 (12.2) | 100.1 (12.7) | 102.8 (11.1) |
| SES, mean (SD) | 1026 (45) | 1022 (48) | 1018 (42) |
| SST performance (ms) | |||
| muS, mean (SD) | 158.98 (72.22) | 141.06 (40.51) | 142.15 (34.39) |
| sigmaS, mean (SD) | 200.02 (94.02) | 144.43 (90.24) | 141.63 (94.22) |
| tauS, mean (SD) | 153.58 (62.91) | 112.95 (56.95) | 100.66 (50.14) |
| SSRT, mean (SD) | 330.37 (110.93) | 267.64 (73.84) | 255.95 (49.13) |
Note: IQ: Intelligence Quotient; SES: Socioeconomic status; SSRT: Stop-signal reaction time; MuS: Mu of the stop-signal reaction time distribution; SigmaS: Sigma of the stop-signal reaction time distribution; TauS: Tau of the stop-signal reaction time distribution; T1-T3: time points 1, 2, 3.