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Multiscale organization of the human cortex : from anatomo-functional cognitive networks to gene expression

Abstract : This work is conceived in the present panorama of fast development of large databases gathering experimental results about the organization of the human brain at different scales. This abundance of information calls for an intra and inter-disciplinary effort aimed to synthesize this information in a coherent way.The aim of this thesis was to contribute to this effort for knowledge synthesis to better understand the multiscale organization of the cerebral cortex. The work followed two paths: an intra-disciplinary effort to bring together results produced by the brain imaging community with particular focus on Resting State and Task Based MRI experiments; an inter-disciplinary attempt to draw a link between the anatomo-functional organization of the cortex as emerging from brain imaging studies and the cortical patterns of gene expression as revealed by recently published atlases of the adult human brain transcriptome.The thesis is organized into three parts: In Part I studied the anatomo-functional organization of the human cortex starting from brain imaging studies. In Part II we studied the link between cortical gene expression and the anatomo-functional organization of the cortex both in term of their topography and in term of their function, focusing in particular on information processing and memory formation. In Part III we present a platform that we developed to favor knowledge integration between cognitive networks and gene expression databases.In perspective we show how our approach may provide new insights to the debate about neurodegenerative and psychiatric diseases on one hand, modeling of dynamical processes in different areas of the cortex on the other.
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Claudia Cioli. Multiscale organization of the human cortex : from anatomo-functional cognitive networks to gene expression. Imaging. Université Pierre et Marie Curie - Paris VI, 2015. English. ⟨NNT : 2015PA066412⟩. ⟨tel-01599241⟩

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