| 1 - Normal day measurement of HRV |
| |
24-hour recording together with activity protocol (filled by participants) |
| 2 - Exam day measurement of HRV |
| |
24-hour recording together with activity protocol (filled by participants); the 24-hour period included a university exam of 1–2 hours |
| 3 - Experiment measurement of HRV and experimental decisions |
| Stage |
| 1a |
Public good game (PGG) without punishment (4 rounds) |
| 1b |
Public good game with punishment (4 rounds) |
| 2 |
Math task 1 (solving cross-sums and -multiplications for 10 minutes) |
| 3a |
Dictator game (DG) without punishment (2 rounds) |
| 3b |
Dictator game with third-party punishment (2 rounds) |
| 4 |
Bet on performance of another player in a second math task (with information about average first round performance) |
| 5 |
Math task 2 (solving cross-sums and -multiplications for 10 minutes) and outcome of the bet |
| 6 |
Bidding game (excluded from analysis, see Method section) |
| 7 |
Ability test (similar to cognitive skill test) |
