Table 1.
Characterisation of study participants. Healthy, control adolescents (Con) and the psychotic symptoms (PSY) group
| Con (n = 14) | PSY (n = 11) | |
|---|---|---|
| Gender (n, %) | ||
| Female | 11 (79%) | 7 (64%) |
| Age (mean weeks, SD) | 634 (33) | 651 (22) |
| Age range (in years) | 11–12 | 11–13 |
| Education (mean years, SD) | 5.4 (0.5)* | 5.9 (0.4) |
| APSS Total Score (out of 7) (mean, SD) | 1 (1.4)** | 3 (1.1) |
| WRAT-4 total reading score (out of 60) (mean, SD) | 54 (15) | 50 (5) |
| Per cent correct (mean, SD) | 42 (16) | 30 (16) |
| GO/NOGO task GO trial reaction time (mean in ms, SD) | 684 (47) | 670 (90) |
CON, control group; PSY, psychotic symptom group; SD, standard deviation; APSS, Adolescent Psychotic-Like Symptom Screener; WRAT, Wide Ranging Achievement Test; ms, milliseconds.
Significant between-group difference
*
P = 0.01,
**
P = 0.001.