Abstract #0995

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

Raïssa Yebga Hot^1,2,3, Marine Siwiaszczyk⁴, Justine Beaujoin^1,2,3, David André Barrière^1,3, Ivy Uszynski^1,5, Scott Love⁴, Ludovic Calandreau⁴, Baptiste Mulot⁶, Elodie Chaillou⁴, and Cyril Poupon^1,2,3

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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