mne.create_default_subject¶

mne.create_default_subject(fs_home=None, update=False, subjects_dir=None, verbose=None)[source]¶

Create an average brain subject for subjects without structural MRI.

Create a copy of fsaverage from the Freesurfer directory in subjects_dir and add auxiliary files from the mne package.

Parameters

fs_homeNone | str: The freesurfer home directory (only needed if FREESURFER_HOME is not specified as environment variable).
updatebool: In cases where a copy of the fsaverage brain already exists in the subjects_dir, this option allows to only copy files that don’t already exist in the fsaverage directory.
subjects_dirNone | str: Override the SUBJECTS_DIR environment variable (os.environ[‘SUBJECTS_DIR’]) as destination for the new subject.
verbosebool, str, int, or None: If not None, override default verbose level (see mne.verbose() and Logging documentation for more). If used, it should be passed as a keyword-argument only.

Notes

When no structural MRI is available for a subject, an average brain can be substituted. Freesurfer comes with such an average brain model, and MNE comes with some auxiliary files which make coregistration easier. create_default_subject() copies the relevant files from Freesurfer into the current subjects_dir, and also adds the auxiliary files provided by MNE.

mne.gui.fiducials mne.scale_mri