What are the ROI identities corresponding to indices 1-12 in resampled_varea.nii.gz?

[raj-magesh]

Thanks for the awesome dataset!

I'm trying to get the visual ROIs identified from the pRF mapping experiment (e.g. V1-V3, hV4, etc.). The files rois/prf/sub-0{1,2,3}/resampled_varea.nii.gz (downloaded from figshare) appear to map each voxel in a subject's brain to one of 12 ROIs, but I don't know what the indices 1-12 correspond to. Is there some metadata file I'm missing that contains this mapping? Also, to confirm, does each voxel belong to exactly one of these ROIs?

I'm assuming from the paper that these regions are V1, V2, V3, hV4, VO1, VO2, LO1, LO2, TO1, TO2, V3a, and V3b, but I'm not sure if this is the right order.

For reference, here are the number of voxels corresponding to each index for sub-01:

index 0: 483331 voxels
index 1: 1432 voxels
index 2: 1226 voxels
index 3: 1252 voxels
index 4: 861 voxels
index 5: 361 voxels
index 6: 199 voxels
index 7: 382 voxels
index 8: 375 voxels
index 9: 375 voxels
index 10: 334 voxels
index 11: 431 voxels
index 12: 841 voxels