Whole-brain contrasts for experiments 3 and 4. A, B, In experiment 3 self > others increases the rACC and aMPFC response robustly (A), whereas little difference appears between similar and dissimilar others (B). C, D, In experiment 4 self > similar stranger replicates experiments 2 and 3 (C), and the contrast dissimilar friend > similar stranger reveals, consistent with experiment 2, loci in MPFC that respond preferentially when making inferences about close others relative to responding about strangers.