Figure 1.

Parcellation scheme and connectivity (correlation) matrices of the whole cortical 2366-node network. Mean parcellation schemes of the right (lateral view) and left (medial view) hemisphere used to define the whole cortical 154-node (top row) and 2366-node (middle row) network nodes and the connectivity matrices (cortical thickness correlations) of the synesthetes (bottom row left) and nonsynesthetes (bottom row right), representing the undirected weighted edges of the whole cortical 2366-node networks, are shown. The connectivity matrices of the whole cortical 154-node networks of the two groups are shown in supplemental Figure S1 (available at www.jneurosci.org as supplemental material). Note that the black and greyish parcellations seen on the medial surfaces represent the medial wall and were not included for the network construction.