Table 1. Means (and SD) for Reaction Time (RT) and Accuracy by Group.
|
RT |
Accuracy |
|||||
|---|---|---|---|---|---|---|
| PE | SocAnh | Control | PE | SocAnh | Control | |
| Unexpected reward (UR) | 928.9 (186.3) | 846.1 (206.6) | 828.1 (254.0) | 0.82 (0.12) | 0.83 (0.15) | 0.85 (0.16) |
| Unexpected punishment (UP) | 1061.4* (247.4) | 819.5 (171.8) | 865.9 (232.7) | 0.81 (0.13) | 0.84 (0.14) | 0.85 (0.11) |
| Reward Sensitivity Difference Score | 132.5* (120.1) | −26.6 (183.3) | 37.8 (176.7) | 0.01 (0.16) | −0.01 (0.15) | 0.01 (0.12) |
Abbreviations: PE, Psychotic Experiences group; SocAnh, Social Anhedonia group.
RT=RT for trials immediately following unexpected feedback. Reward Sensitivity Difference Score for RT=UP−UR; for Accuracy=UR−UP. Asterisks indicate that the PE group differed significantly from the other two groups (note that for the Reward Sensitivity Difference Score for PE vs Controls, p=0.06).