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Random location of Multiple Sparse Priors for solving the MEG/EEG inverse problem

机译:用于解决MEG / EEG逆问题的多个稀疏电视机的随机位置

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MEG/EEG brain imaging has become an important tool in neuroimaging. Current techniques based in Bayesian approaches require an a-priori definition of patch locations on the cortical manifold. Too many patches results in a complex optimisation problem, too few an under sampling of the solution space. In this work random locations of the possible active regions of the brain are proposed to iteratively arrive at a solution. We use Bayesian model averaging to combine different possible solutions. The proposed methodology was tested with synthetic MEG datasets reducing the localisation error of the approaches based on fixed locations. Real data from a visual attention study was used for validation
机译:MEG / EEG脑成像已成为神经影像动物的重要工具。基于贝叶斯方法的当前技术需要在皮质歧管上的补丁位置的a-priori定义。太多补丁导致复杂的优化问题,在解决方案空间采样太少。在该工作中,提出了大脑的可能活动区域的随机位置,以迭代地到达解决方案。我们使用贝叶斯模型平均来结合不同的可能解决方案。通过合成MEG数据集测试所提出的方法,从而减少了基于固定位置的方法的定位误差。视觉注意研究中的真实数据用于验证

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