{
  "name": "fsaverage5 cortical source mesh",
  "description": "Both cortical hemispheres of an anatomical average template; not subject-specific MRI. No electrodes are registered to this asset.",
  "hemisphereOrder": "left vertices and triangles, followed by right vertices and triangles",
  "vertexStrideBytes": 14,
  "format": "7 signed int16, little endian per vertex",
  "fields": [
    "x / 100 mm",
    "y / 100 mm",
    "z / 100 mm",
    "nx / 32767",
    "ny / 32767",
    "nz / 32767",
    "sulcalDepth / 1000"
  ],
  "coordinates": "Raw FreeSurfer fsaverage5 surface RAS millimetres: x right, y anterior, z superior. GIFTI identity coordinate transform; marked Talairach transformed space in source metadata. Do not assume direct MNI electrode registration.",
  "sources": [
    "https://raw.githubusercontent.com/nilearn/nilearn/main/nilearn/datasets/data/fsaverage5/pial_left.gii.gz",
    "https://raw.githubusercontent.com/nilearn/nilearn/main/nilearn/datasets/data/fsaverage5/pial_right.gii.gz",
    "https://raw.githubusercontent.com/nilearn/nilearn/main/nilearn/datasets/data/fsaverage5/sulc_left.gii.gz",
    "https://raw.githubusercontent.com/nilearn/nilearn/main/nilearn/datasets/data/fsaverage5/sulc_right.gii.gz"
  ],
  "sourceSha256": {
    "pial_left.gii.gz": "1e76fe43ac194c15fd272643f7ae7995621e2a496b3102b2d6175f0f8e6d7fc8",
    "pial_right.gii.gz": "fdfae008bc10acf7cba82737ea5db9a7298948c41884a2d3330a785783a60a91",
    "sulc_left.gii.gz": "bd0f87e0cba153e9d5c5281edc7267f631b1967e5883d4027924766c8430eb62",
    "sulc_right.gii.gz": "97afe76225903205a16b88f88cd796945f2a27011328e98decaa9128ff063afb"
  },
  "provenance": [
    "https://nilearn.github.io/stable/modules/generated/nilearn.datasets.load_fsaverage.html",
    "https://surfer.nmr.mgh.harvard.edu/fswiki/FsAverage"
  ],
  "licenses": [
    {
      "name": "Nilearn BSD-3-Clause",
      "file": "/licenses/nilearn-BSD.txt",
      "source": "https://github.com/nilearn/nilearn/blob/main/LICENSE"
    },
    {
      "name": "FreeSurfer Software License Agreement v1.0, February 2011",
      "file": "/licenses/freesurfer-data.txt",
      "source": "https://surfer.nmr.mgh.harvard.edu/fswiki/FreeSurferSoftwareLicense"
    }
  ],
  "mesh": {
    "file": "/data/brain-surface.bin",
    "magic": "NSM1",
    "vertexCount": 20484,
    "faceCount": 40960,
    "byteLength": 532548,
    "format": "12-byte header (magic, uint32 vertex count, uint32 face count), then 7 little-endian int16 per vertex using the field scales above, then uint16 triangle indices; left hemisphere followed by right"
  },
  "modifications": "Area-weighted normal generation, binary quantization, and indexed topology packaging. Original mesh geometry is retained; flat white shading and marker selection are performed by the renderer."
}