Table 2.
Participant characteristics and task performance
| Characteristic | Mean ± SD (n = 759) |
|---|---|
| Age (yr) | 16.20 ± 3.27 |
| Sex (female/male) | 419/340 |
| Race (Caucasian/other) | 408/351 |
| Motion (mm) | 0.073 ± 0.03 |
| Fluid intelligencea | 12.62 ± 3.97 |
| Fear accuracy | 0.89 ± 0.11 |
| Anger accuracy | 0.92 ± 0.09 |
| Sad accuracy | 0.88 ± 0.11 |
| Neutral accuracy | 0.91 ± 0.09 |
| Happy accuracy | 0.99 ± 0.03 |
| Fear RT (s) | 2.65 ± 0.46 |
| Anger RT (s) | 2.48 ± 0.44 |
| Sad RT (s) | 2.68 ± 0.46 |
| Happy RT (s) | 2.09 ± 0.40 |
| Neutral RT (s) | 2.34 ± 0.44 |
aFluid intelligence is measured by Penn Matrix Reasoning Test scores (i.e., total correct responses for all test trials). RT, Response time (median). For age distribution, see also Figure 1a.