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. 2016 Aug 17;10:410. doi: 10.3389/fnhum.2016.00410

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Copyright © 2016 Mellerio, Lapointe, Roca, Charron, Legrand, Meder, Oppenheim and Cachia.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution and reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Morphological features of the precentral sulcus (PreCS) with an excellent inter-rater concordance (κ > 0.80) and with values (frequency occurrence) that do not differ from Ono’s post-mortem values. The PreCS (in green) represented on a 3D mesh-based reconstruction of the cortex surface. PreCS with two (A) or three (B) segments (arrows). PreCS superior end patterns (C) with marginal PreCS (arrow heads) and medial PreCS (arrow). PreCS superior segment shape with arcuate termination with Y-shaped end (D, arrow). Pre-CS inferior segment patterns with arcuate form (E), ramified form (F), bayonet form (G) and Y-shaped end (H, arrow). PreCS connections (I) with superior frontal sulcus (arrow), intermediate frontal sulcus (double arrow) or inferior frontal sulcus (arrow head).