MEG_mat

The original MEG dataset was acquired from all 306 sensors (204 gradiometers and 102 magnetometers) during two different sessions for each participant and recorded as .fif files. As each session consists of two data files due to the session break, for better handling of the data, we have merged these files to create one single '.fif' file for each session. Thus, there are two raw '.fif' data files for each participant (i.e. one for each session). It is worth to be noted the data is available in two data formats i.e. MEG-BIDS format '.fif' and MATLAB compatible '.mat' file at the repository. In .mat format, each participant data is stored in two folders (i.e. session 1 and session 2) under the root directory of 'MEG_mat'.

原始脑磁图（MEG）数据集采集自全部306个传感器（包含204个梯度计与102个磁强计），每位受试者需完成两次独立实验会话，原始数据初始以.fif格式文件录制。由于单次实验会话会因实验中断拆分为两份数据文件，为便于数据处理，我们已将每一会话的两份文件合并为单个.fif格式文件。因此每位受试者对应两份原始.fif格式数据文件（即对应两次实验会话各一份）。值得说明的是，本数据集存储库中提供两种数据格式：符合MEG-BIDS标准的.fif格式文件，以及与MATLAB兼容的.mat格式文件。在.mat格式下，每位受试者的数据存储于根目录'MEG_mat'下的两个文件夹中（分别对应会话1与会话2）。