Figure 5 : Cross-classification test results with local pattern classifiers.

From: Separate neural representations for physical pain and social rejection

Figure 5

We conducted whole-brain searches for candidate regions for shared neural processes between pain and rejection with 6-mm radius spherical searchlights around centre voxels. To determine the candidate regions, we conducted cross-classification tests (with leave-one-subject-out cross-validation) among the regions that accurately classify both pain (Heat-pain versus Warmth) and rejection (Ex-partner versus Friend). The cross-classification test consisted of the following steps: (i) A local classifier was trained and cross-validated separately for one condition, and (ii) the classifier was tested on the other condition in the same leave-one-subject-out cross-validation test sample. Here we thresholded all results at FDR q<0.05 (P<0.0038) and visualized the 6-mm sphere coverage. PCC, posterior cingulate cortex; PHG, parahippocampal gyrus; RSC, retrosplenial cortex; TPJ, temporal parietal junction. The anatomical atlas was from the SPM anatomy toolbox70.