Table 1.
Task-design.
| Action-context | Emotional prime | Optimal response | Probablistic reinforcement: +/- € 0.20 |
|---|---|---|---|
| Approach (120) | |||
| Instrumental targets:1–3 | Angry (30) Happy (30) |
Go (60) | p(reward|go) = 0.8, p(punish|go) = 0.2 |
| Instrumental targets:4–6 | Angry (30) Happy (30) |
Nogo (60) | p(reward|go) = 0.2, p(punish|go) = 0.8 |
| Avoidance (120) | |||
| Instrumental targets:7–9 | Angry (30) Happy (30) |
Go (60) | p(reward|go) = 0.8, p(punish|go) = 0.2 |
| Instrumental targets:10–12 | Angry (30) Happy (30) |
Nogo (60) | p(reward|go) = 0.2, p(punish|go) = 0.8 |
Emotional prime (angry/happy), action-context (approach/avoidance), and optimal response (go/nogo) were manipulated independently. (N)= N trials.