*****ForrestGump-MEG: A audio-visual movie watching MEG dataset*****

For details please refer to our paper on [].

This dataset contains MEG data recorded from 11 subjects while watching the 2h long Chinese-dubbed audio-visual movie 'Forrest Gump'. The data were acquired with a 275-channel CTF MEG. Auxiliary data (T1w) as well as derivation data such as preprocessed data and MEG-MRI co-registration are also included. 


**Pre-process procedure description**

The T1w images stored as NIFTI files were minimally-preprocessed using the anatomical preprocessing pipeline from fMRIPrep with default settings. 

MEG data were pre-processed using MNE following a three-step procedure: 1. bad channels were detected and removed. 2. a high-pass filter of 1 Hz was applied to remove possible slow drifts from the continuous MEG data. 3. artifacts removal was performed with ICA.


**Stimulus material**

The audio-visual stimulus material was from the Chinese-dubbed 'Forrest Gump' DVD released in 2013 (ISBN: 978-7-7991-3934-0), which cannot be publicly released here due to copyright restrictions.



**Dataset content overview**

the data were organized following the MEG-BIDS using MNE-BIDS toolbox.

*the pre-processed MEG data*

The preprocessed MEG recordings including the preprocessed MEG data, the event files, the ICA decomposition and label files and the MEG-MRI coordinate transformation file are hosted here. 

	└── ./derivatives/preproc_meg-mne_mri-fmriprep/sub-xx/ses-movie/meg/
		├── sub-xx_ses-movie_coordsystem.json
		├── sub-xx_ses-movie_task-movie_run-xx_channels.tsv
		├── sub-xx_ses-movie_task-movie_run-xx_decomposition.tsv
		├── sub-xx_ses-movie_task-movie_run-xx_events.tsv
		├── sub-xx_ses-movie_task-movie_run-xx_ica.fif.gz
		├── sub-xx_ses-movie_task-movie_run-xx_meg.fif
		├── sub-xx_ses-movie_task-movie_run-xx_meg.json
		├── ...
		└── sub-xx_ses-movie_task-movie_trans.fif


*the pre-processed MRI data*

The preprocessed MRI volume, reconstructed surface, and other associations including transformation files are hosted here

	└── ./derivatives/preproc_meg-mne_mri-fmriprep/sub-xx/ses-movie/anat/
		├── sub-xx_ses-movie_desc-preproc_T1w.nii.gz
		├── sub-xx_ses-movie_hemi-L_inflated.surf.gii
		├── sub-xx_ses-movie_hemi-L_midthickness.surf.gii
		├── sub-xx_ses-movie_hemi-L_pial.surf.gii
		├── sub-xx_ses-movie_hemi-L_smoothwm.surf.gii
		├── sub-xx_ses-movie_hemi-R_inflated.surf.gii
		├── sub-xx_ses-movie_hemi-R_midthickness.surf.gii
		├── sub-xx_ses-movie_hemi-R_pial.surf.gii
		├── sub-xx_ses-movie_hemi-R_smoothwm.surf.gii
		├── sub-xx_ses-movie_space-MNI152NLin2009cAsym_desc-preproc_T1w.nii.gz
		├── sub-xx_ses-movie_space-MNI152NLin6Asym_desc-preproc_T1w.nii.gz
		└── ...

the FreeSurfer surface data, the high-resolution head surface and the MRI-fiducials are provided here

	└── ./derivatives/preproc_meg-mne_mri-fmriprep/sourcedata/
		└── freesurfer	
		    └── sub-xx
		    └── ...


*the raw data*

	└── ./sub-xx/ses-movie/	
		├── meg/
		│	├── sub-xx_ses-movie_coordsystem.json
		│	├── sub-xx_ses-movie_task-movie_run-xx_channels.tsv
		│	├── sub-xx_ses-movie_task-movie_run-xx_events.tsv
		│	├── sub-xx_ses-movie_task-movie_run-xx_meg.ds
		│	├── sub-xx_ses-movie_task-movie_run-xx_meg.json
		│	└── ...		
		└── anat/
			├── sub-xx_ses-movie_T1w.json
			└── sub-xx_ses-movie_T1w.nii.gz