Fig. 1.

Comparative overview of the monkey and human PPC. A Macaque brain areas. B Human brain areas. The color code distinguishes frontal motor areas (red), somatosensory cortices (green), and the posterior parietal cortex (yellow; the areas more extensively discussed in this study and their putative human homologues are reported in darker yellow). Abbreviations: as, arcuate sulcus; cas, calcarine sulcus; cg, cingulate gyrus; cs, central sulcus; ios, inferior occipital sulcus; ips, intraparietal sulcus; lf, lateral fissure; ls, lunate sulcus; pos, parieto-occipital sulcus; ps, principal sulcus; sts, superior temporal sulcus