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Abstract #4553

In vivo detection of sexual dimorphisms in the brain of a Passerine songbird, a proof-of-principle study

Julie Hamaide 1 , Geert De Groof 2 , Johan Van Audekerke 1 , Lisbeth Van Ruijssevelt 1 , Zhenhua Mai 1 , Firat Kara 1 , Marleen Verhoye 1 , and Annemie Van Der Linden 1

1 University of Antwerp, Wilrijk, Antwerp, Belgium, 2 University of Antwerp, Antwerp, Belgium

The aim of the present study was to implement a non-invasive in vivo diffusion tensor imaging (DTI) protocol in the tiny zebra finch. To test for the sensitivity of the optimized sequence, we tried to visualize known (histology) sexual dimorphisms in adult zebra finches. We found the known dimorphisms and illustrate the benefit of using whole-brain in vivo MRI by revealing novel, unexplored sexual dimorphisms in the adult zebra finch brain.

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