Fig. 4.

Strategy-linked activity patterns replicate over participants and contexts. a Model-driven clustering of the parameter space by moral strategy based on similarity between model simulations. b Mean reciprocity behavior in each of the four strategy groups reflects the theoretical predictions of IA, GA, MO, and GR. IA inequity-averse, GA guilt-averse, MO morally opportunistic, GR greedy. c Multi-voxel activity patterns that replicate over subjects within moral strategy group in the ×4 condition (i.e., patterns generalize over subjects within group). d Parcels where strategy-specific ×4 activity patterns generalize across subjects to ×2. e Parcels where strategy-specific ×4 activity patterns generalize across subjects to ×6. f Conjunction of c, d, and e. Activity patterns in these parcels clustered within the respective strategy group in the x4 condition, and generalized to ×2 and ×6