Note

This page is a reference documentation. It only explains the function signature, and not how to use it. Please refer to the user guide for the big picture.

7.2.24. nilearn.datasets.fetch_surf_fsaverage

nilearn.datasets.fetch_surf_fsaverage(mesh='fsaverage5', data_dir=None)

Download a Freesurfer fsaverage surface

Parameters:

mesh: str, optional (default=’fsaverage5’)

Which mesh to fetch. ‘fsaverage5’: the low-resolution fsaverage5 mesh (10242 nodes) ‘fsaverage’: the high-resolution fsaverage mesh (163842 nodes) (high-resolution fsaverage will result in more computation time and memory usage)

data_dir: str, optional (default=None)

Path of the data directory. Used to force data storage in a specified location.

Returns:

data: sklearn.datasets.base.Bunch

Dictionary-like object, the interest attributes are :
  • ‘pial_left’: Gifti file, left hemisphere pial surface mesh
  • ‘pial_right’: Gifti file, right hemisphere pial surface mesh
  • ‘infl_left’: Gifti file, left hemisphere inflated pial surface mesh
  • ‘infl_right’: Gifti file, right hemisphere inflated pial
    surface mesh
  • ‘sulc_left’: Gifti file, left hemisphere sulcal depth data
  • ‘sulc_right’: Gifti file, right hemisphere sulcal depth data

References

Fischl et al, (1999). High-resolution intersubject averaging and a coordinate system for the cortical surface. Hum Brain Mapp 8, 272-284.