Behavioural performance of participants in the initial and sustained parts of the emotional blocks
| Performance parameter; part of block | Group; mean (SD) | Between-group comparisons* | ||
|---|---|---|---|---|
| Healthy controls | Schizophrenia patients | Test | p value | |
| Accuracy, % | ||||
| Initial | 94.7 (5.7) | 83.8 (11.0) | U26 = 23.5 | 0.008 |
| Sustained | 96.8 (3.5) | 87.0 (15.3) | U26 = 48 | 0.31 |
| Omissions, % | ||||
| Initial | 7.3 (6.8) | 28.0 (25.7) | U26 = 31.5 | 0.036 |
| Sustained | 10.0 (7.2) | 32.1 (32.2) | U26 = 49 | 0.35 |
| Reaction time, ms | ||||
| Initial | 2189.3 (326.2) | 2727.0 (548.8) | t26 = 1.38 | 0.18 |
| Sustained | 2183.0 (261.8) | 2824.0 (692.0) | t26 = 2.16 | 0.046 |
SD = standard deviation.
↵* Comparisons were performed by use of independent sample tests. We used nonparametric Mann–Whitney U tests for accuracy and omissions and the parametric Student test for reaction time.