BIDS Import: Read field AssociatedEmptyRoom

[ftadel]

Proper import of BIDS-MEG datasets should use properly the field AssociatedEmptyRoom to match the MEG recordings with the corresponding empty-room measurements.

This can be tested using these two datasets: https://openneuro.org/datasets/ds000247/versions/00002 https://openneuro.org/datasets/ds000117/versions/1.0.3 And possibly other datasets: https://github.com/bids-standard/bids-examples

Guiomar complained that in the OMEGA tutorial (ds000247) the subject and noise recordings where not matched correctly.

The tutorial scripts should be modified accordingly: https://github.com/brainstorm-tools/brainstorm3/blob/master/toolbox/script/tutorial_omega.m https://github.com/brainstorm-tools/brainstorm3/blob/master/toolbox/script/tutorial_frontiers2018_single.m#L38 https://github.com/brainstorm-tools/brainstorm3/blob/master/toolbox/script/tutorial_visual_single.m#L38

The documentation might need to be edited too: https://neuroimage.usc.edu/brainstorm/Tutorials/RestingOmega#Source_estimation