Table 2.

Activations correlated with violations of expectations

Region	Peak Z-score	X	Y	Z	Cluster size (vox)
Mismatched (Rejection + Unrequited) > matched (Match + Disinterest)
Posterior superior temporal sulcus	4.33	−51	−43	0	30
Ventrolateral PFC	4.15	−36	20	−18	27
Unsigned prediction errors from RL model
Rostromedial PFC	4.60	9	53	25	33

Note: Activations in table were thresholded voxelwise at P < 0.001 and with a cluster size set to control for multiple comparisons over whole brain at P < 0.05 (27–33 voxels). T-statistics were converted to Z-scores for reporting. Coordinates are reported in MNI space, as in SPM8. Voxel size was 3 × 3 × 3.2 mm.

PFC, prefrontal cortex.