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Abstract #2107

Investigation of the singularity of the chimpanzee brain superficial white matter bundles using diffusion MRI and clustering-based approaches

Maëlig Chauvel1, Ivy Uszynski1, Alexandros Popov1, William Hopkins2, Jean-François Mangin1, and Cyril Poupon1
1BAOBAB, NeuroSpin, Université Paris-Saclay, CNRS, CEA, Gif-sur-Yvette, France, 2Keeling Center for Comparative Medicine and Research, The University of Texas MD Anderson Cancer Center, Bastrop, TX, United States


A way to better appreciate the complex human brain evolution relies on comparative investigations with homologous species. We present here the superficial connectivity organization of the Chimpanzee brain using a combination of image processing and DBSCAN clustering analyzes obtained from 39 chimpanzees DTI scans. The results revealed the presence of U-fiber, V-fiber and Curved-fiber shapes already identified in Human superficial fiber connectivity studies. This non-negligeable short fibers organisation resemblance between Chimpanzees and Humans, brings out new perspectives on hominid brain singularity knowledge.

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