Fig. 5
fMRI patterns in OFC encode outcome identity expectations. a For each searchlight sphere, “template” patterns from CS-evoked activity of each task state were constructed using fMRI data from two of the three fMRI runs. In the “left out” run, the CS-related activity pattern on each trial was correlated with the four template patterns, and resulting correlation coefficients were labeled according to the relationship to the current state (SISV = same identity, same value; SIDV = same identity, different value; DISV = different identity, same value; DIDV = different identity, different value). Sorted correlation coefficients were Fisher’s z-transformed and mapped to the center voxel of the sphere to generate maps of pattern information content for group analysis. b Regions in the OFC encoding identity expectations, determined using the SISV–DISV contrast. Red = p < 0.005, uncorrected; yellow = p < 0.001 uncorrected. c Post hoc analysis of pattern similarity at the peak OFC voxel resulting from the SISV–DISV contrast revealed that there was also a significant difference between SISV and DIDV. Error bars depict within-subjects s.e.m. *p < 0.05, paired t-tests. d For illustration, pattern similarity values at the peak OFC voxel are shown for trials immediately before and after identity reversals (iREV). Correlations are depicted for SISV and DISV templates (relative to their post-reversal relationship) across pre- and post-reversal trials
