Fig. 2.

Decoding identity across participants with surface-searchlight, between-subject MVPC after hyperalignment. (A) Brain map showing decoding accuracy for personally familiar faces. (B) Brain map showing decoding accuracy for visually familiar faces. Both maps are thresholded at P < 0.05, one-sided, after permutation testing and FDR correction (Benjamini-Hochberg). “NS” on the colorbar indicates the range of nonsignificant accuracy values greater than 25%. (C) Difference in decoding accuracy between personally familiar faces and visually familiar faces. Red vertices indicate higher decoding accuracy for personally familiar faces (Personal > Visual). Blue vertices indicate higher decoding accuracy for visually familiar faces (Visual > Personal). The map is thresholded at P < 0.05, two-sided, after permutation testing and FDR correction (Benjamini-Hochberg). For personally familiar faces, significant between-subject decoding accuracy was present across the core system: bilateral OFA and fusiform gyrus, right ATL (ventral core system); right pSTS, mSTS, and anterior STS (dorsal core system); and right IFG (anterior core system). Significant decoding accuracy was also present in areas of the extended system: right TPJ and MPFC(theory of mind areas), bilateral precuneus, and right insula. For visually familiar faces, significant between-subject decoding accuracy was limited to areas of the core system: bilateral OFA and fusiform gyrus, right mSTS, and right IFG. Between-subject decoding accuracy for personally familiar faces was higher than for visually familiar faces in large portions of the face processing network. Higher decoding accuracy for personally familiar faces was present in areas of the core system such as bilateral lateral occipital cortex (LOC), right mFFA, and right IFG, and areas of the extended system such as right TPJ, precuneus, MPFC, and insula.