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A new superficial white matter connectivity atlas of the chimpanzee brain
Maëlig Chauvel1, Ivy Uszynski1, William Hopkins2, Jean-François Mangin1, and Cyril Poupon1
1Université Paris-Saclay, CEA, CNRS, BAOBAB, Neurospin, Gif-sur-Yvette, France, 2Keeling Center for Comparative Medicine and Research, The University of Texas MD Anderson Cancer Center, Bastrop, TX, United States
Thanks to a cohort of 39 chimpanzee subjects provided by the NYPRC from Atlanta, we present here the the first atlas of the superficial white matter bundles of the chimpanzee brain, established using diffusion MRI-based tractography and advanced fiber clustering techniques.
Figure 3. Superficial white matter bundle atlas of the chimpanzee brain (center), with a detailed vision of some U-fibers found in the right (on the left) and left hemispheres (on the right). Abbreviations : a,s,p,m,l : anterior, superior, posterior, medial, lateral ; AnG : Angular gyrus, Cun : Cuneus, FFG : Fusiform gyrus, IFG : Inferior frontal gyrus, ITG : Inferior temporal gyrus, OFC : Orbitofrontal cortex, OG : Occipital gyrus, lns : Insula, MTG : Middle temporal gyrus, PoCG : Postcentral gyrus, PrCG : Precentral gyrus, SMG : Supramarginal gyrus, STG : Superior temporal gyrus.
Figure 2. Matrices of the number of clusters found for each pair of regions of the left and right hemisphere superficial white matter bundles atlas. The color bar intensity is related to the number of clusters, in total, 2189 / 2182 clusters found for the left/right hemispheres.