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. 2019 May 8;39(19):3627–3639. doi: 10.1523/JNEUROSCI.2060-18.2019

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Copyright © 2019 Lopez-Persem et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License Creative Commons Attribution 4.0 International, which permits unrestricted use, distribution and reproduction in any medium provided that the original work is properly attributed.

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Figure 3. — Morphological deformation associated with the presence of supplementary sulci and patterns. A, Partial correlation coefficients between each measure of interest of the ROS-S and SU-ROS, and the presence of SILS, ROS-I, PCGS, and patterns 1–3. y and z correspond to the anteroposterior and dorsoventral MNI coordinates, respectively. “Top” corresponds to the location of the most anterodorsal extremity of each sulcus. “Bottom” corresponds to the location of the most ventroposterior extremity of each sulcus. “Length” is the length of each sulcus. Only significant partial correlation coefficients are displayed (p < 0.05). Hot colors indicate a positive influence of having a supplementary sulcus or a specific pattern. Cold colors indicate negative effects. B, Schematic representation of the significant influence of the presence of SILS (left), the presence of ROS-I (middle), and patterns 2 and 3 (P2 and P3, right) on the SU-ROS and ROS-S locations. Arrows attached to white circles indicate an influence on the circled extremity of the sulci; arrows with colored bordures indicating an influence on the barycenters of the sulci; double arrows indicate a positive effect on length while two facing arrows indicate a negative effect on length. C, Left, Projection of all the left SU-ROS for subjects with and without SILS. Middle, Projection of all the left ROS-S for subjects with and without ROS-I. Right, Projection of all the left SU-ROS for subjects with pattern 1 and subjects with pattern 2. n indicates the number of subjects displayed on the surface. D, vmPFC sulci in the MNI152 template. On the left hemisphere, the sulci observed on the MNI152 template correspond to an overlap of several sulci. Percentages were computed from our sample of subjects. This overlap is induced by the morphological deformation caused by supplementary sulci. The right hemisphere of the MNI152 template does not present such overlaps because of the high presence of ROS-I. This absence of overlap does not mean that supplementary sulci do not induce morphological deformation on the right side; it indicates that the average template has sulci in the right hemisphere that globally correspond to the same right hemisphere sulci across subjects.