Table 1. Demographic information of adolescents in the linear mixed model across three timepoints.
| Age 14 | Age 19 | Age 23 | |
|---|---|---|---|
| N (three timepoints) | 2148 | ||
| Sex (M/F) | 1055/1093 | ||
| Age (years) | 14.4±0.4 | 19±0.7 | 22.6±0.7 |
| Mean FD (mm) | 0.28±0.32 | 0.18±0.17 | 0.18±0.12 |
| GO RT (ms) | 466.6±80 | 400.7±71.8 | 403.9±73.8 |
| ICV | 0.234±0.038 | 0.224±0.051 | 0.217±0.052 |
| Stop RT (ms) | 461.5±114.8 | 360±82.4 | 363.6±78.2 |
| SSD (ms) | 319.3±148.1 | 188.1±132.4 | 190±158.4 |
| SSRT (ms) | 217.8±37.2 | 213.3±43.3 | 216.2±42.6 |
| pOmission (%) | 4.4±10.5 | 2.6±8.6 | 3.7±11.1 |
| pChoiceError (%) | 4.7±6.6 | 4.8±4.7 | 5.2±7.6 |
| pCommission (%) | 47.9±6.3 | 47.5±6 | 47.2±6.9 |
Note: These data pertain to the participants included in the behavioural analyses. N, number of subjects; FD, framewise displacement of MR images; ICV, intra-individual coefficient of variation (assay for sustained attention); SSRT, stop signal reaction time; GO RT, reaction time in Go trials; Stop RT, reaction time in stop fail trials; SSD, stop signal delay; pOmisssion, probability of go omissions (no response); pChoiceError, probability of choice errors on Go trials; pCommission, probability of commission on Stop trials.