Vector-of-ROI analysis along the dorsal–ventral axis. To investigate the sociality–transitivity gradient, decoding accuracies (multiclass, across- category, and within-category decoding of transitivity and sociality), RSA correlations of neural RDMs with the transitivity and sociality models and univariate β estimates for each action category are plotted as a function of position on the dorsal–ventral axis from pSTS to PHC (see Materials and Methods for details). The color bar corresponds to the colors of the ROIs projected on the inflated cortex surface. Labels denote the approximate anatomical regions in LOTC and VOTC. Shaded areas around the curves represent 1 SEM across subjects. Black arrows indicate peaks of the multiclass decoding. Red and blue arrows indicate peaks in LOTC (located dorsally and ventrally of the multiclass peak) for sociality and transitivity, respectively, as revealed by the across-category decoding and the RSA.