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Abstract #0995

A novel 11.7T ultra-high field dMRI connectivity atlas of the Japanese quail

Raïssa Yebga Hot1,2,3, Marine Siwiaszczyk4, Justine Beaujoin1,2,3, David André Barrière1,3, Ivy Uszynski1,5, Scott Love4, Ludovic Calandreau4, Baptiste Mulot6, Elodie Chaillou4, and Cyril Poupon1,2,3

1CEA (Commissariat à l'Energie Atomique et aux Energies Alternatives), NeuroSpin, Gif-sur-Yvette, France, 2Université Paris-Saclay, Orsay, France, 3FLI/Noeud Paris-Sud, Orsay, France, 4CNRS IFCE Université François Rabelais Tours, INRA (Institut national de la recherche agronomique), Nouzilly, France, 5Université Grenoble Alpes, GIN (Grenoble Institut des Neurosciences), Grenoble, France, 6Beauval Nature, ZooParc de Beauval, Saint-Aignan, France

Despite the existence of several structural atlases of avian brains, few of them address the bird structural connectivity. In this study, a novel atlas of the structural connectivity is proposed for the Japanese quail, aiming at investigating two lines: the short and the long tonic immobility lines. Using high resolution T2-weighted MRI and ultra-high field diffusion MRI, the connectivity of both lines was investigated, showing the existence of structural differences between the connectivity patterns characterizing the two lines. Thus, the link between their specific behaviors facing fear and their underlying anatomical substrates reached a better understanding.

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