Get regions of interest near channels from a Freesurfer parcellation.
This is applicable for channels inside the brain (intracranial electrodes).
A montage containing channel positions. If a string or
specified, the existing channel information will be updated with the
channel positions from the montage. Valid strings are the names of the
built-in montages that ship with MNE-Python; you can list those via
None (default), the channel positions will be removed from the
The FreeSurfer subject name.
The path to the directory containing the FreeSurfer subjects
None, defaults to the
The anatomical segmentation file. Default
aparc+aseg. This may
be any anatomical segmentation file in the mri subdirectory of the
Freesurfer subject directory.
The distance in mm to use for identifying regions of interest.