Benchmark data for canonical head computational models

Summary Data obtained within the EIC CEREBRO project, whose processing led to research results published in the following articles: Giunzioni, V., Merlini, A., Adrian, S. B., & Andriulli, F. P. (2023). On a Calderón preconditioner for the symmetric formulation of the electroencephalography forward problem without barycentric refinements. Journal of Computational Physics, 491, 112374. Structure of the data Each entry contains the following elements: LeadField.h5 contains the matrix used to map dipole activity into EEG recordings. inner_skull_flipped.gmsh contains the mesh of the surface of interface between the brain and the skull. outer_skull_flipped.gmsh contains the mesh of the surface of interface between the skull and the scalp. head_surface.gmsh contains the mesh of the surface of interface between the scalp and the air outside the head. Dipoles.h5 contains the positions and moments of the dipole sources employed to evaluate the leadfield matrices. ElectrodesPosition.h5 contains the positions of the electrodes over the scalp in a common high resulution EEG measurement setup. Datasets head_computational_models_symmetric_j.jcp.2023.112374.zip contains the leadfield matrix (and related data) evaluated by solving the forward EEG problem with the symmetric formulations (see Kybic 2005). head_computational_models_symmetric_preconditioned_j.jcp.2023.112374.zip contains the leadfield matrix (and related data) evaluated by solving the forward EEG problem with the preconditioned symmetric formulation (following the approach in [1]).数据集摘要 本数据集源自EIC CEREBRO项目获取的实验数据，经数据处理后形成的研究成果已发表于以下学术期刊论文： Giunzioni, V., Merlini, A., Adrian, S. B., & Andriulli, F. P. (2023). 针对无需重心细化的脑电图正问题对称格式的卡尔德隆预条件子（Calderón preconditioner）. 《计算物理期刊》（Journal of Computational Physics）, 第491卷, 论文编号112374. 数据结构 每个数据条目包含以下元素： `LeadField.h5`：存储用于将偶极子活动映射至脑电图（Electroencephalography, EEG）记录的矩阵。 `inner_skull_flipped.gmsh`：存储大脑与颅骨之间界面的表面网格。 `outer_skull_flipped.gmsh`：存储颅骨与头皮之间界面的表面网格。 `head_surface.gmsh`：存储头皮与头部外部空气之间界面的表面网格。 `Dipoles.h5`：存储用于评估导联场矩阵的偶极子源的位置与偶极矩。 `ElectrodesPosition.h5`：存储标准高分辨率脑电图测量设置下，头皮表面电极的位置。 数据集详情 1. `head_computational_models_symmetric_j.jcp.2023.112374.zip`：包含通过对称格式求解脑电图正问题得到的导联场矩阵及相关配套数据（详见Kybic 2005）。 2. `head_computational_models_symmetric_preconditioned_j.jcp.2023.112374.zip`：包含通过预条件对称格式求解脑电图正问题得到的导联场矩阵及相关配套数据（遵循文献[1]中的研究方法）。