Table 1. State measurement of anxiety and mood and post-scanning ratings (N = 22).
| OXT | PLC | Paired t-test | |
|---|---|---|---|
| Mean (S.D.) | Mean (S.D.) | t (p) | |
| State Measurements | |||
| Positive affect pre | 29.50 (5.91) | 30.73 (5.49) | −1.144 (0.266) |
| Positive affect post | 25.45 (6.44) | 25.32 (7.45) | 0.168 (0.868) |
| Negative affect pre | 11.18 (1.01) | 11.55 (1.79) | −1.250 (0.225) |
| Negative affect post | 11.91 (2.54) | 11.59 (2.13) | 0.718 (0.481) |
| State anxiety pre | 44.09 (1.44) | 44.18 (2.34) | −0.153 (0.880) |
| State anxiety post | 44.05 (2.77) | 43.68 (1.89) | 0.584 (0.565) |
| Attention | 191.05 (78.00) | 189.50 (86.96) | 0.140 (0.890) |
| Post-scanning Rating | |||
| Perceived unfairness of offer | 4.73 (1.13) | 4.95 (0.90) | −1.755 (0.094) |
| Deservedness for punishing the first-party | 4.26 (1.39) | 4.52 (1.00) | −1.161 (0.259) |
| Empathic concern for the second-party | 4.43 (1.12) | 4.62 (0.86) | −0.824 (0.419) |
Note: OXT = oxytocin, PLC = placebo, pre = before treatment, post = after the scanning task; the PANAS was used for assessing positive/negative mood and STAI_state for state anxiety. Both mood and anxiety were measured before and after the treatment; the D2 test was used for assessing attention; all the post-scanning ratings ranged between 0 to 8.