Figure 2.
Inverse planning. Human observers were shown a player’s decision to cooperate (C) or defect (D) and judged the player’s likely preferences and belief. Model inversion yields a joint inference of the mental contents conditional on the players’ actions. Preference weights take continuous values between zero and one. Player 1’s belief about what player 2 will choose was rated on a 6-point confidence scale. Expectation shows the mean weight of each marginal distribution conditional on the player’s action ().