BRAIN Initiative: Theories, Models and Methods for Analysis of Complex Data from the Brain

摘要 脑成像中的双胞胎研究设计提供了一种非常有效的方法来确定人类的遗传性 个脑袋单卵双胞胎（MZ）和同性双卵双胞胎（DZ）之间的变异性差异可用于 来决定遗传性。我们建议确定结构和功能的遗传程度， 使用200对双胞胎（400个人）的fMRI/DTI和MRI在体素水平上的脑网络。为了获得高- 分辨率遗传地图的大脑网络，该项目需要采取超过25000体素， fMRI和MRI/DTI的120万体素作为网络节点，这是一个严重的计算挑战。的 一个项目提出了许多新的算法来构建大规模的大脑网络，并随后映射 网络的可遗传性。这项研究将为大脑成像界提供基线大脑 网络遗传性图以及用于建模和可视化的多功能开源算法工具箱 三种不同成像模式的大规模大脑网络。

Abstract The twin study design in brain imaging offers a very effective way of determining heritability of the human brain. The difference in variability between monozygotic (MZ) and same-sex dizygotic (DZ) twins can be used in determining heritability. We propose to determine the extent of heritability of both structural and functional brain networks at the voxel-level using 200 pairs of twin (400 individuals) of fMRI/DTI and MRI. To obtain high- resolution heritability map of the brain networks, the project requires taking more than 25 thousands voxels for fMRI and 1.2million voxels for MRI/DTI as network nodes, which is a serious computational challenge. The project proposes many new algorithms for constructing large-scale brain networks and subsequently mapping the heritability of the networks. This study will provide the brain imaging community with the baseline brain network heritability maps as well as a versatile open-source toolbox of algorithms for modeling and visualizing large-scale brain networks of three different imaging modalities.