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.

8.2.30. nilearn.datasets.fetch_atlas_schaefer_2018

nilearn.datasets.fetch_atlas_schaefer_2018(n_rois=400, yeo_networks=7, resolution_mm=1, data_dir=None, base_url=None, resume=True, verbose=1)[source]

Download and return file names for the Schaefer 2018 parcellation

New in version 0.5.1.

The provided images are in MNI152 space.

For more information on this dataset, see 1, 2, and 3.

n_roisint, optional

Number of regions of interest {100, 200, 300, 400, 500, 600, 700, 800, 900, 1000}. Default=400.

yeo_networksint, optional

ROI annotation according to yeo networks {7, 17}. Default=7.

resolution_mmint, optional

Spatial resolution of atlas image in mm {1, 2}. Default=1mm.

data_dirpathlib.Path or str, optional

Path where data should be downloaded. By default, files are downloaded in home directory.

base_urlstring, optional

base_url of files to download (None results in default base_url).

resumebool, optional

Whether to resume download of a partly-downloaded file. Default=True.

verboseint, optional

Verbosity level (0 means no message). Default=1.


Dictionary-like object, contains:

  • maps: 3D Nifti image, values are indices in the list of labels.

  • labels: ROI labels including Yeo-network annotation,list of strings.

  • description: A short description of the atlas and some references.


Release v0.14.3 of the Schaefer 2018 parcellation is used by default. Versions prior to v0.14.3 are known to contain erroneous region label names. For more details, see

Licence: MIT.



Schaefer 2018 parcellation. Accessed: 2021-05-19.


Alexander Schaefer, Ru Kong, Evan M Gordon, Timothy O Laumann, Xi-Nian Zuo, Avram J Holmes, Simon B Eickhoff, and B T Thomas Yeo. Local-Global Parcellation of the Human Cerebral Cortex from Intrinsic Functional Connectivity MRI. Cerebral Cortex, 28(9):3095–3114, 07 2017. URL:, arXiv:\_schaeferfullsupp.pdf, doi:10.1093/cercor/bhx179.


B. T. Thomas Yeo, Fenna M. Krienen, Jorge Sepulcre, Mert R. Sabuncu, Danial Lashkari, Marisa Hollinshead, Joshua L. Roffman, Jordan W. Smoller, Lilla Zöllei, Jonathan R. Polimeni, Bruce Fischl, Hesheng Liu, and Randy L. Buckner. The organization of the human cerebral cortex estimated by intrinsic functional connectivity. Journal of Neurophysiology, 106(3):1125–1165, 2011. PMID: 21653723. URL:, arXiv:, doi:10.1152/jn.00338.2011.