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Identifying Shared Brain Networks in Individuals by Decoupling Functional and Anatomical Variability

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机构: [1]Department of Biomedical Imaging and Image-guided Therapy, Computational Imaging Research Lab, Medical University of Vienna, Vienna, Austria, [2]Computer Science and Artificial Intelligence Lab, Massachusetts Institute of Technology, Cambridge, MA, USA, [3]Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, USA, [4]Ludwig Maximilian University Munich, Institute of Clinical Radiology, Munich, Germany, [5]Department of Radiology,Xuanwu Hospital, Capital Medical University, Beijing, China [6]Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
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关键词: functional parcellation individual differences resting-state fMRI

摘要:
The connectivity architecture of the human brain varies across individuals. Mapping functional anatomy at the individual level is challenging, but critical for basic neuroscience research and clinical intervention. Using resting-state functional connectivity, we parcellated functional systems in an "embedding space" based on functional characteristics common across the population, while simultaneously accounting for individual variability in the cortical distribution of functional units. The functional connectivity patterns observed in resting-state data were mapped in the embedding space and the maps were aligned across individuals. A clustering algorithm was performed on the aligned embedding maps and the resulting clusters were transformed back to the unique anatomical space of each individual. This novel approach identified functional systems that were reproducible within subjects, but were distributed across different anatomical locations in different subjects. Using this approach for intersubject alignment improved the predictability of individual differences in language laterality when compared with anatomical alignment alone. Our results further revealed that the strength of association between function and macroanatomy varied across the cortex, which was strong in unimodal sensorimotor networks, but weak in association networks.

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出版当年[2015]版:
大类 | 1 区 医学
小类 | 2 区 神经科学
最新[2023]版:
大类 | 2 区 医学
小类 | 3 区 神经科学
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出版当年[2014]版:
Q1 NEUROSCIENCES
最新[2023]版:
Q2 NEUROSCIENCES

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第一作者机构: [1]Department of Biomedical Imaging and Image-guided Therapy, Computational Imaging Research Lab, Medical University of Vienna, Vienna, Austria, [2]Computer Science and Artificial Intelligence Lab, Massachusetts Institute of Technology, Cambridge, MA, USA,
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通讯机构: [*1]Suite 2301, 149 13th St., Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, 02129, USA
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