Yes and no.
MNE-BIDS now supports writing files that have been loaded and potentially modified in memory; see the changelog of version 0.8.
That said, derivatives are still not properly specified by BIDS.
This is only meant to indicate that I authored this tutorial
There’s an example in the BIDS spec for the filenames, MEG file formats - Brain Imaging Data Structure v1.6.0
Another bit of the spec discusses possible values of the
The proc label is analogous to rec for MR and denotes a variant of a file that was a result of particular processing performed on the device. This is useful for files produced in particular by Elekta’s MaxFilter (for example, sss, tsss, trans, quat or mc), which some installations impose to be run on raw data because of active shielding software corrections before the MEG data can actually be exploited.
It doesn’t mention how to combine multiple “procs”, as in, “MaxFilter and movement correction”. In the BIDS Pipeline, we would concatenate multiple parameter values that belong to the same BIDS entity via
+ signs; following this (non-standardized!!) approach in the case of
tSSS and movement correction, this would become
proc-tsss+mc. An example filename would then for example look like: